Benzene Ring Bonded Directly To Guanidine Nitrogen Patents (Class 564/238)
  • Patent number: 6147063
    Abstract: The present invention provides therapeutically useful substituted guanidines of the following Formula: ##STR1## and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such guanidines.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: November 14, 2000
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Graham J. Durant, Sharad Magar, Lain-Yen Hu
  • Patent number: 6100428
    Abstract: An improved method for guanylating amines is provided. Broadly, the amines are reacted with a guanylating agent in the presence of a nickel catalyst. Preferably, the nickel catalyst comprises nickel in the zero oxidation state. Suitable nickel(0) catalysts are derived from nickel-boride alloys, nickel-phosphide alloys, aluminum-nickel alloys, nickel on kieselguhr, and nickel on silica/alumina catalysts. Preferred guanylating agents are thioureas and isothioureas. In one embodiment, protecting groups are selectively attached to the guanylating agents to yield particular substituted guanidines. The preferred protecting groups are Boc groups, Cbz groups, and arylsulfonyl groups. The reactions are particularly well suited for guanylating primary and secondary amines. The methods of the invention can be carried out under ambient conditions to provide high yields of the corresponding guanidines, with the nickel catalyst being essentially completely recoverable for reuse.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: August 8, 2000
    Assignee: The University of Kansas
    Inventors: Laxminarayan Bhat, Gunda I. Georg
  • Patent number: 6066673
    Abstract: The present invention relates to compounds, compositions, and methods which are useful for the prevention and treatment of adverse health, skin, hair, and oral conditions. The compounds, compositions, and methods are also widely applicable for use in health, skin, hair, oral, beauty, and personal care applications.In particular, the present invention relates to compounds having the structure: ##STR1## and the tautomers, acceptable salts, and biohydrolyzable amides, esters, and imides thereof, wherein A, Q, n, P, L.sub.1, L.sub.2, L.sub.3, L.sub.4, Z, X, B.sub.1, and B.sub.2 are defined herein.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: May 23, 2000
    Assignee: The Procter & Gamble Company
    Inventors: John McMillan McIver, Todd Laurence Underiner, Timothy Bates
  • Patent number: 6013675
    Abstract: The present invention provides therapeutically useful substituted guanidines and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such guanidines.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: January 11, 2000
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Graham J. Durant, Lain-Yen Hu, Sharad Magar
  • Patent number: 5955507
    Abstract: The present invention provides therapeutically useful substituted guanidines and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such guanidines.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: September 21, 1999
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Graham J. Durant, Lain-Yen Hu, Sharad Magar
  • Patent number: 5922772
    Abstract: The present invention provides therapeutically useful substituted guanidines and methods of treatment and pharmaceutical compositions that utilize or comprise one or more of such guanidines.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 13, 1999
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Graham J. Durant, Lain-Yen Hu, Sharad Magar
  • Patent number: 5847006
    Abstract: The present invention provides N,N'-diaryl substituted guanidines having therapeutic utility. The compounds of the present invention are represented by the formula: ##STR1## wherein R and R.sup.1 represent hydrogen or other group and Ar and Ar.sup.1 represent selected aryl groups, and at least one being acenaphthyl.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: December 8, 1998
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Sharad Magar, Graham J. Durant, Lain-Yen Hu, Stanley M. Goldin, N. Laxma Reddy, James B. Fischer, Subbarao Katragadda, Andrew Gannett Knapp, Lee David Margolin
  • Patent number: 5840893
    Abstract: There is disclosed compound according to the formula: ##STR1## wherein A, independently,=CH.sub.3 or CH.sub.2 CH.sub.3, P=1 or 2; and ##STR2## wherein X=NH.sub.2, CH.sub.3 or CH.sub.2 CH.sub.3 ; X'=CH.sub.3 or CH.sub.2 CH.sub.3 ; Y=NH.sub.2, NHCH.sub.3, N(CH.sub.3).sub.2 ; and Z=H, CH.sub.3 or CH.sub.2 CH.sub.3 ; or ##STR3## wherein Y' and Z', independently,=H, NH.sub.2, NHCH.sub.3, N(CH.sub.3).sub.2 or N.sup.+ (CH.sub.3).sub.3 ; Q is N or CH; and salts thereof.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: November 24, 1998
    Assignee: The Picower Institute for Medical Research
    Inventors: Michael I. Bukrinsky, Anthony Cerami, Peter Ulrich, Bradley J. Berger
  • Patent number: 5798390
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: August 25, 1998
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University and the University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5767162
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: June 16, 1998
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University and the University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5733932
    Abstract: The present invention encompasses the use of the compounds of formula as given below to detect certain specific protein structures which are present in nuclear localization sequences ##STR1## wherein A is, independently CH.sub.3 or CH.sub.2 CH.sub.3 and R is ##STR2## and salts thereof.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 31, 1998
    Assignee: The Picower Institute for Medical Research
    Inventors: Michael I. Bukrinsky, Anthony Cerami, Peter Ulrich
  • Patent number: 5696290
    Abstract: The present invention is the novel synthesis of sterically hindered penta-substituted guanidines by a process in which (1a) an isocyanate is reacted first with a di-substituted amine or (1b) a urea is reacted with two moles of a mono-substituted amine to form a tri-substituted urea followed by (2) treatment of the tri-substituted urea with an activating agent before reacting with a second di-substituted amine in the presence of a base.
    Type: Grant
    Filed: September 12, 1994
    Date of Patent: December 9, 1997
    Assignee: Monsanto Company
    Inventors: Kenneth W. Ruettimann, William D. McGhee, A. John Solodar
  • Patent number: 5637621
    Abstract: The invention provides fungicidal compounds having the general formula:X.sub.1 -A.sub.1 -B.sub.1 -C-B.sub.2 -A.sub.2 -X.sub.2 (I)wherein X.sub.1 is an amidine, a guanidine, or an imidazole group.A.sub.1 is either a five-membered aromatic ring, a six-membered aromatic ring, a fusion of two five-membered aromatic rings, a fusion of 2 six-membered aromatic rings, or a fusion of a six-membered aromatic ring and a five-membered aromatic ring;B.sub.1 is either O (oxygen) or absent; C is a straight chain alkyl comprising 1-8 carbons; B.sub.2 is either O (oxygen) or absent; A.sub.2 is either a five-membered aromatic ring, a six-membered aromatic ring, a fusion of two five-membered aromatic rings, a fusion of 2 six-membered aromatic rings, or a fusion of a six-membered aromatic ring and a five-membered aromatic ring; and X.sub.2 is an amidine, a guanidine, or an imidazole.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: June 10, 1997
    Assignee: NZYM, Inc.
    Inventors: Joel Bolonick, Terrance J. Leighton, Ida K. Yu
  • Patent number: 5637622
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: June 10, 1997
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University and the University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5629348
    Abstract: The invention provides fungicidal compounds having the general formula:X.sub.1 -A.sub.1 -B.sub.1 -C-B.sub.2 -A.sub.2 -X.sub.2 (I)wherein X.sub.1 is an amidine, a guanidine, or an imidazole group.A.sub.1 is either a five-membered aromatic ring, a six-membered aromatic ring, a fusion of two five-membered aromatic rings, a fusion of 2 six-membered aromatic rings, or a fusion of a six-membered aromatic ring and a five-membered aromatic ring;B.sub.1 is either O (oxygen) or absent; C is a straight chain alkyl comprising 1-8 carbons; B.sub.2 is either O (oxygen) or absent; A.sub.2 is either a five-membered aromatic ring, a six-membered aromatic ring, a fusion of two five-membered aromatic rings, a fusion of 2 six-membered aromatic rings, or a fusion of a six-membered aromatic ring and a five-membered aromatic ring; and X.sub.2 is an amidine, a guanidine, or an imidazole.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 13, 1997
    Assignee: NZYM, Inc.
    Inventors: Joel Bolonick, Terrance J. Leighton, Ida K. Yu
  • Patent number: 5614630
    Abstract: Modulators of neurotransmitter release including substituted guanidines, N"-aminoguanidines, and N,N'N",N'"-tetrasubstituted hydrazinedicarboximidamides, and pharmaceutical compositions thereof are disclosed. Also disclosed are methods involving the use of such neurotransmitter release modulators for the treatment or prevention of pathophysiologic conditions characterized by the release of excessive or inappropriate levels of neurotransmitters. Also disclosed are screening assays for compounds which selectively inhibit glutamate release. Also disclosed are methods of blocking voltage sensitive sodium and calcium channels in mammalian nerve cells.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 25, 1997
    Assignee: Cambridge NeuroScience, Inc.
    Inventors: Stanley M. Goldin, Subbarao Katragadda, Lain-Yen Hu, N. Laxma Reddy, James B. Fischer, Andrew G. Knapp, Lee D. Margolin
  • Patent number: 5565185
    Abstract: The present invention provides a no-carrier-added synthesis of radiolabeled meta-halobenzylguanidine by halodestannylation which comprises reacting a meta-trialkylstannylbenzylguanidine with a source of radionuclide of a halogen. The present invention also provides meta-trialkylstannylbenzylguanidine as intermediates in the afore-mentioned process.
    Type: Grant
    Filed: July 20, 1994
    Date of Patent: October 15, 1996
    Assignee: Merck Frosst Canada, Inc.
    Inventors: Duncan H. Hunter, Alok Goel, Richard J. Flanagan
  • Patent number: 5559154
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: September 24, 1996
    Assignees: Oregon State Board of Higher Education, Oregon Health Sciences University, University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5556857
    Abstract: The present invention provides a disturbance-of-consciousness improving agent which is a highly effective and quick remedy and which can be administered orally. The disturbance-of-consciousness improving agent of the invention contains a sigma receptor agonist compound as an active ingredient.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 17, 1996
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yasuo Oshiro, Tatsuyoshi Tanaka, Tetsuro Kikuchi, Katsura Tottori
  • Patent number: 5502255
    Abstract: N,N-disubstituted-guanidines, e.g., of the formula ##STR1## wherein R and R' are substituted or unsubstituted hydrocarbon groups. Methods are provided for the treatment of psychosis and hypertension by administering an effective amount of an N,N'-disubstituted guanidine which, preferably, has a high affinity for the sigma receptor.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: March 26, 1996
    Assignee: State of Oregon acting by and through the Oregon State Board of Higher Education, acting for and on behalf of The Oregon Health Sciences University and The University of Oregon
    Inventors: John Keana, Eckard Weber
  • Patent number: 5489709
    Abstract: A process for the preparation of a substituted guanidine by reacting a substituted cyanamide with ammonia or a substituted amine in the presence of a Lewis acid catalyst. Also disclosed is a process for the preparation of a tri-substituted guanidine by reacting a mono-substituted cyanamide with a di-substituted amine.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: February 6, 1996
    Assignees: Cambridge Neuroscience, Inc., University of Toledo
    Inventors: Graham J. Durant, Sharad S. Magar
  • Patent number: 5441984
    Abstract: The present invention provides novel urea, thiourea and guanidine derivatives, pharmaceutical formulations thereof and a method of using same to prevent diabetic complications.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: August 15, 1995
    Assignee: Eli Lilly and Company
    Inventors: William F. Heath, Jr., Jill A. Panetta, John K. Shadle
  • Patent number: 5395853
    Abstract: The present invention is concerned with compounds of formula (I) ##STR1## wherein m is 0 or 1;W is hydrogen, a C.sub.1-16 straight, branched, or cyclic alkyl group, or a C.sub.2-16 straight, branched, or cyclic alkenyl or alkynyl group, orPh(CH.sub.2).sub.n -- where Ph is phenyl and n is an integer of from 0 to 2, the phenyl group being optionally substituted by one or more atoms or groups independently selected from halogen, hydroxy, nitro, C.sub.1-4 alkoxy and C.sub.1-4 alkyl wherein one or more of the hydrogen atoms in said alkyl group is optionally replaced by halogen, orR.sup.1 NHCO-- where R.sup.1 is hydrogen or a C.sub.1-6 alkyl group, orR.sup.2 CONH-- where R.sup.2 is hydrogen or a C.sub.1-6 alkyl group; ##STR2## Y is --(CH.sub.2).sub.q, where q is an integer of from 1 to 3, or --CH.dbd.CH-- (E or Z);Z is a C.sub.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: March 7, 1995
    Assignee: Burroughs Wellcome Co.
    Inventors: William P. Jackson, Clifford J. Harris, Richard J. Arrowsmith, John G. Dann, Kevin J. O'Connor, Robert F. G. Booth
  • Patent number: 5336689
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: August 9, 1994
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University and the University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5322698
    Abstract: The invention relates to a process for the preparation of a tablet or dragee composition containing a moisture-, heat- and light-sensitive compounds having monoclinic crystalline structure as active ingredients, which comprises homogenizing the active ingredient with 0.2 to 1.5 parts by weight of an anhydrous alkaline earth metal salt and 0.5 to 2.5 parts by weight of microcrystalline cellulose calculated for the active ingredient and optionally with one or more pharmaceutically acceptable carrier(s) and/or additive(s) and compressing the homogeneous mixture obtained to tablets in a manner known per se and, if desired, coating the tablet thus obtained in a manner known per se.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: June 21, 1994
    Assignee: Biogal Gyogyszergyar Rt.
    Inventors: Istvan Kovacs, Katalin Beke, Tibor Mathe, Judit Szilagyi, Gyorgy Bacsa, Katalin Marossy, Sandor Jancso, Levente Szendrei, Erno Orban, Margit Simo, Margit Biblo, Dorottya Bobak, Jozsef Lango
  • Patent number: 5302620
    Abstract: The present invention relates to bisguanidine derivatives of the formula I ##STR1## where R.sup.1 and R.sup.2 are each, independently of one another, hydrogen, alkyl, alkenyl, alkynyl, alkoxyalkyl, haloalkenyl; or cycloalkyl which has 5-12 carbon atoms in the ring and may be substituted, or benzyl which may be substituted, with the proviso that only one of R.sup.1 and R.sup.2 can be hydrogen; orR.sup.1 and R.sup.2 are, together with the atoms which they substitute, a heterocyclic ring which may be substituted;X is CH.sub.2, O, a single bond, NH, N-alkyl or N-benzyl whose phenyl ring may be substituted,n is 5 to 8,and their plant-compatible acid addition salts and their metal complexes and fungicides containing these compounds.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: April 12, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Mueller, Matthias Zipplies, Eberhard Ammermann, Gisela Lorenz
  • Patent number: 5302720
    Abstract: Compounds of formula I ##STR1## and their salts in which R.sub.1 is optionally substituted phenyl, R.sub.2 is alkyl, cycloalkyl or optionally substituted amino, or R.sub.2 and R.sub.3 together with the nitrogen and carbon atoms to which they are attached form an optionally substituted heterocyclic ring or R.sub.3 and R.sub.4 together with the nitrogen atom to which they are attached form an optionally substituted heterocyclic ring and R.sub.5 is H, halo, alkyl, alkoxy, trifluoromethyl or a group of formula S(O).sub.m R.sub.8 in which m is 0, 1 or 2 and R.sub.8 is alkyl have utility in the treatment of diabetes particularly in the treatment of hyperglycaemia.
    Type: Grant
    Filed: June 17, 1992
    Date of Patent: April 12, 1994
    Assignee: The Boots Company
    Inventor: Balasubramanian Gopalan
  • Patent number: 5298657
    Abstract: A process for the preparation of a substituted guanidine by reacting a substituted cyanamide with ammonia or a substituted amine in the presence of a Lewis acid catalyst. Also disclosed is a process for the preparation of a tri-substituted guanidine by reacting a mono-substituted cyanamide with a di-substituted amine.
    Type: Grant
    Filed: March 20, 1992
    Date of Patent: March 29, 1994
    Assignee: Cambridge Neuroscience Inc.
    Inventors: Graham J. Durant, Sharad S. Magar
  • Patent number: 5290814
    Abstract: The present invention is concerned with compounds of formula (I) ##STR1## wherein m is 0 or 1;W is hydrogen, a C.sub.1-16 straight, branched, or cyclic alkyl group, or a C.sub.2-16 straight, branched, or cyclic alkenyl or alkynyl group, or Ph(CH.sub.2).sub.n -- where Ph is phenyl and n is an integer of from 0 to 2, the phenyl group being optionally substituted by one or more atoms or groups independently selected from halogen, hydroxy, nitro, C.sub.1-4 alkoxy and C.sub.1-4 alkyl wherein one or more of the hydrogen atoms in said alkyl group is optionally replaced by halogen, or R.sup.1 NHCO-- where R.sup.1 is hydrogen or a C.sub.1-6 alkyl group, or R.sup.2 CONH-- where R.sup.2 is hydrogen or a C.sub.1-6 alkyl group; X is ##STR2## where A is halogen; Y is --(CH.sub.2).sub.q, where q is an integer of from 1 to 3, or --CH.dbd.CH-- (E or Z);Z is a C.sub.
    Type: Grant
    Filed: November 5, 1992
    Date of Patent: March 1, 1994
    Assignee: Burroughs Wellcome Co.
    Inventors: William P. Jackson, Clifford J. Harris, Richard J. Arrowsmith, John G. Dann, Kevin J. O'Connor, Robert F. G. Booth
  • Patent number: 5276186
    Abstract: A process for the production of phenylguanidine carbonate and hydrogencarbonate by reacting aqueous cyanamide with aniline hydrochloride within a specified pH range, combining the reaction mixture with an alkali metal carbonate or hydrogencarbonate, and separating the crystalline product.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: January 4, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Rudolf Waditschatka
  • Patent number: 5268373
    Abstract: This invention relates to new heterocyclic derivatives of guanidine and more particularly to such derivatives which have hypoglycemic activity, their methods of use for treating hyperglycemia and novel intermediate compounds for their preparation.
    Type: Grant
    Filed: July 28, 1992
    Date of Patent: December 7, 1993
    Assignee: McNeilab, Inc.
    Inventors: Henry J. Breslin, Michael J. Kukla, Chris R. Rasmussen, Robert W. Tuman
  • Patent number: 5262568
    Abstract: Tri- and tetra-substituted guanidines which exhibit a high binding affinity to phencyclidine (PCP) receptors and, more preferably, low affinity to the brain sigma receptors. These guanidine derivatives act as non-competitive inhibitors of glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert neuroprotective activity and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, and brain or spinal chord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Parkinson's disease, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: March 4, 1991
    Date of Patent: November 16, 1993
    Assignee: State of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5246810
    Abstract: A guanidine type compound has the following formula: ##STR1## wherein R.sup.1 to R.sup.8 are each a hydrogen atom, an alkyl group, an amino group, an alkoxy group, a substituted or umsubstituted aryl group, and R.sup.1 and R.sup.8 may be the same as or different from each other and together may form a ring with the adjacent substituents; X is a halogen atom, a hydroxyl group or an alkoxy group; and m and n are each an integer having a value of 1 to 8. The guanidine compound is employed in a toner for electrostatic development and the toner can be used in an electrophotographic apparatus including a facsimile apparatus for receiving image information from an electrophotographic copier.
    Type: Grant
    Filed: October 18, 1990
    Date of Patent: September 21, 1993
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuyoshi Hagiwara, Katsuhiko Tanaka
  • Patent number: 5093525
    Abstract: Disubstituted guanidines, e.g., bis-1,3-(o-isopropylphenyl)guanidine, bis-1,3-(m-isopropylphenyl)guanidine, bis-1,3-(1-naphthyl)guanidine, bis-1,3-(m-methoxyphenyl)guanidine, N-(1-naphthyl)-N'-(o-iodophenyl)-guanidine, N-(1-naphthyl)-N'-(m-ethylphenyl)guanidine, and N-(1-napthyl)-N'-(o-isoproylphenyl) guanidine, exhibit a high binding affinity to phencyclidine (PCP) receptors. These N,N'-disubstituted guanidine derivatives act as non-competitive inhibitors of glutamate-induced responses generated via the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert a neuroprotective property and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal chord ischemia, brain or spinal cord trauma, as well as being useful for the treatmnet of epilepsy, Alzheimer's disease, Amyotrophic Laterla Scherosis, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative disorders.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: March 3, 1992
    Assignees: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University, University of Oregon
    Inventors: Eckard Weber, John F. W. Keana
  • Patent number: 5023107
    Abstract: A method of improving the adhesion of an adhesive to the surface of hard tissue. Before the adhesive is applied, the hard tissue surface is primed with a polybiguanide or an addition salt thereof, or is pretreated with an aqueous solution of a magnesium salt and then primed with a primer selected from a long chain alkyl quaternary ammonium salt, a bisbiguanide, an acid addition salt of a bisbiguanide, a polybiguanide, and an acid addition salt of polybiguanide.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: June 11, 1991
    Assignee: Imperial Chemical Industries PLC
    Inventor: Thomas A. Roberts
  • Patent number: 4906779
    Abstract: Disubstituted guanidines, e.g., N,N'-di-m-tolyl guanidine, N,N'-di-o-ethylphenyl guanidine, N,N'-di-m-ethylphenyl guanidine, and N,N'-di-o-iodophenyl-guanidine, exhibit a high binding affinity to phenylcyclidine (PCP) receptors. These guanidine derivatives act as non-competitive blockers to glutamate induced responses of the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert a neuroprotective property and are useful in the therapeautic treatment of neuronal loss in ischemia, hypoxia, hypoglycemia, and brain and spinal cord trauma as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amyotrophic Lateral Sclerosis, Huntington's disease, Down's Syndrome and other neurodegenerative disorders.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: March 6, 1990
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University
    Inventors: Eckard Weber, John F. Keana
  • Patent number: 4804780
    Abstract: Novel substituted phenyl and benzyl nitroguanidine and phenyl and benzyl cyanoguanidine compounds. Methods for increasing crop yield, inhibiting lodging of graminaceous crops, and inducing cytokinin-like responses in crop plants with said novel guanidine compounds and derivatives thereof, as well as methods for inhibiting deterioration and/or extending the shelf life of harvested fruit, vegetables, and ornamentals are disclosed.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: February 14, 1989
    Assignee: American Cyanamid Company
    Inventors: Laurine M. Speltz, Bryant L. Walworth, Alexander D. Pavlista
  • Patent number: 4783553
    Abstract: Diarylguanidines can be isolated from the crude melt from the reaction of arylamines and cyanogen chloride in excellent quality and yield by dissolving the hot melt in water, extracting this solution with at least one polar, water-insoluble, organic compound, and precipitating from the purified aqueous solution the diarylguanidine by adding alkali metal hydroxide.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: November 8, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfred Nierth, Hans Muller
  • Patent number: 4739117
    Abstract: Diaryl guanidines can be obtained in a high degree of purity and in high yields from the crude melt obtained from the reaction of arylamines and cyanogen chloride by dissolving the hot melt in water, extracting this solution with a mixture of at least one water insoluble, apolar hydrocarbon and at least one polar organic compound and precipitating the diaryl guanidine from the purified, aqueous solution by the addition of alkali metal hydroxide.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: April 19, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alfred Nierth, Bernhard Scherhag, Reinhard Preuss, Heinz Klose, Salvatore Sabia
  • Patent number: 4709094
    Abstract: 1,3-Disubstituted-guanidines, e.g., of the formula ##STR1## wherein R and R' are hydrocarbon groups which preferably are the same, e.g., 1,3-dibutyl-guanidine, 1,3-diphenyl-guanidine and 1,3-di-o-tolyl-guanidine, are highly selective ligands for sigma brain receptors and are useful in the diagnosis and treatment of hallucination associated psychotic mental illness and chronic mental depression. Tritium labeled 1,3-di-(o-tolyl)-guanidine is useful as a screening tool for compounds having selective sigma receptor binding activity, as it is displaced from isolated mammalian brain membrane to which it is bound portionately to the activity of such a compound.
    Type: Grant
    Filed: July 10, 1986
    Date of Patent: November 24, 1987
    Assignee: State of Oregon, acting by and through the Oregon State Board of Higher Education, acting for and on behalf of the Oregon Health Sciences University and the University of Oregon
    Inventors: Eckard Weber, Mark Sonders, John F. Keana
  • Patent number: 4628061
    Abstract: Novel compounds have a formula (I) ##STR1## wherein ##STR2## represents a bicyclo [2,2,1] hept-2Z-ene, bicyclo [2,2,1] heptane, 7-oxa-bicyclo [2,2,1] hept-2Z-ene, 7-oxa-bicyclo [2,2,1] heptane, bicyclo [2,2,2] oct-2Z-ene or bicyclo [2,2,2] octane substituted at the 5-position by the group R.sup.1 and at the 6-position by the group ANR.sup.2 R, a 6,6-dimethyl-bicyclo [3,1,1] heptane substituted at the 2-position by the group R.sup.1 and at the 3-position by the group ANR.sup.2 R or at the 2-position by the group ANR.sup.2 R and at the 3-position by the group R.sup.1, a cyclohex-1-ene or cyclohexane substituted at the 4-position by the group R.sup.1 and at the 5-position by the group ANR.sup.2 R or a 1-hydroxycyclopentane substituted at the 2-position by the group R.sup.1 and at the 2-position by the group ANR.sup.2 R, R.sup.
    Type: Grant
    Filed: August 23, 1983
    Date of Patent: December 9, 1986
    Assignee: National Research Development Corporation
    Inventors: Robert L. Jones, Norman H. Wilson
  • Patent number: 4594092
    Abstract: Novel substituted phenyl and benzyl nitroguanidine and phenyl and benzyl cyanoguanidine compounds. Methods for increasing crop yield, inhibiting lodging of graminaceous crops, and inducing cytokinin-like responses in crop plants with said novel guanidine compounds and derivatives thereof, as well as methods for inhibiting deterioration and/or extending the shelf life of harvested fruit, vegetables, and ornamentals are disclosed.
    Type: Grant
    Filed: November 17, 1983
    Date of Patent: June 10, 1986
    Assignee: American Cyanamid Company
    Inventors: Laurine M. Speltz, Bryant L. Walworth, Alexander D. Pavlista
  • Patent number: 4584187
    Abstract: A new radiopharmaceutical composition for use in nuclear medicine comprises a radioiodinated meta-iodobenzylguanidine. The composition is used as an imaging agent for the heart, adrenal medulla, and tumors of the adrenal medulla and can be used for treatment of tumors of the adrenal medulla.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: April 22, 1986
    Inventors: Donald M. Wieland, Lawrence E. Brown, William H. Beierwaltes, Jiann-long Wu
  • Patent number: 4358613
    Abstract: Guanidines are one of the strongest organic bases and find applications where this property is needed, such as in phase transfer catalysis in the form of their substituted derivatives. Their use, however, has been hampered by their expensive nature due to the only mediocre yields in their preparation. The present invention provides a process for the preparation of substituted guanidines in high yields.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: November 9, 1982
    Assignee: General Electric Company
    Inventor: Victor Mark
  • Patent number: 4333929
    Abstract: A compound of formula (II) or a pharmaceutically acceptable acid addition salt thereof ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and each represents C.sub.1-6 alkyl; R.sup.5 represents hydrogen or C.sub.1-6 alkyl; R.sup.6 represents C.sub.1-6 alkyl, phenyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl, and C.sub.1-6 alkoxy; or benzyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.1-6 alkoxy; or R.sup.5 and R.sup.6 together represent the remaining members of a 5- or 6-membered ring optionally containing an oxygen, sulphur or additional nitrogen atom and being optionally substituted with C.sub.1-6 alkyl, carboxy or C.sub.1-6 alkoxycarbonyl; and R.sup.7 represents C.sub.1-6 alkyl, phenyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.1-6 alkoxy; or benzyl optionally substituted with up to 3 groups selected from halogen, C.sub.1-6 alkyl and C.sub.
    Type: Grant
    Filed: January 19, 1981
    Date of Patent: June 8, 1982
    Assignee: Beecham Group Limited
    Inventor: Barrie C. C. Cantello
  • Patent number: 4317819
    Abstract: The invention provides compounds of general formula ##STR1## and physiologically acceptable salts, hydrates and bioprecursors thereof, in whichY and Z, which may be the same or different, each represent oxygen, sulphur, .dbd.CHNO.sub.2 or .dbd.NR.sub.3 where R.sub.3 is hydrogen, nitro, cyano, lower alkyl, aryl, alkylsulphonyl or arylsulphonyl;p has a value from 2 to 12;R.sub.1 represents ##STR2## in which R.sub.4 and R.sub.5 which may be the same or different, each represent hydrogen, lower alkyl, cycloalkyl, lower alkenyl, aralkyl or lower alkyl interrupted by an oxygen atom or a group >N-R.sub.6 in which R.sub.6 represents hydrogen or lower alkyl, or R.sub.4 and R.sub.5 together with the nitrogen atom to which they are attached form a 5 to 7-membered saturated heterocyclic ring which may contain an additional oxygen atom or the group >NR.sub.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: March 2, 1982
    Assignee: Glaxo Group Limited
    Inventors: John W. Clitherow, Barry J. Price, John Bradshaw, Michael Martin-Smith
  • Patent number: 4277487
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, represent a hydrogen atom, a chlorine atom, or a methyl group, with the proviso that not both R.sub.1 and R.sub.2 are hydrogen, andR represents a radical selected from the group consisting of --(CH.sub.2).sub.2 --C(CH.sub.3).dbd.CH.sub.2, --(CH.sub.2).sub.2 --CH.dbd.CH.sub.2, --O--CH.sub.2 --CH.dbd.CH.sub.2, --O--(CH.sub.2).sub.2 --CH.dbd.CH.sub.2, --O--CH.sub.2 --C(CH.sub.3).dbd.CH.sub.2, --O--CH.sub.2 --CH.dbd.CH--CH.sub.3, ##STR2## and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as bradycardiacs.
    Type: Grant
    Filed: July 17, 1979
    Date of Patent: July 7, 1981
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Helmut Stahle, Herbert Koppe, Werner Kummer, Walter Kobinger, Christian Lillie, Ludwig Pichler
  • Patent number: 4269837
    Abstract: Novel guanylamidines and the pharmaceutically acceptable acid addition salts thereof having activity as hypoglycemic agents are disclosed.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: May 26, 1981
    Assignee: Pfizer Inc.
    Inventors: David S. Watt, Jeffrey L. Ives