Polycyclo Carbocyclic Ring System Having At Least Three Cyclos Patents (Class 548/528)
  • Patent number: 5132432
    Abstract: The invention relates to novel fluorescent dyes based on the following pyrenyloxy sulfonic acid structure: ##STR1## wherein at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is --OCH.sub.2 C(O)OCH.sub.3, --OCH.sub.2 CON(O)H, --OCH.sub.2 CON.sub.3, --OCH.sub.2 CONHNH.sub.2, ##STR2## or --CH.sub.2 CONH(CH.sub.2).sub.n NH.sub.2 where n is an integer from 1 to 10; at least one of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 is sulfonic acid or alkali salts of sulfonic acid; and all other of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are hydrogen or a hydroxyl group. The new reagents contain functional groups typically found in biomolecules or polymers. The spectral properties of the fluorescent dyes are sufficiently different in wavelengths and intensity from fluorescein as to permit simultaneous use of both dyes with minimum interference.
    Type: Grant
    Filed: September 22, 1989
    Date of Patent: July 21, 1992
    Assignee: Molecular Probes, Inc.
    Inventors: Richard P. Haugland, James E. Whitaker
  • Patent number: 5128358
    Abstract: Antidepressant agents having the formula ##STR1## wherein R.sup.1 is a polycycloalkyl group; R.sup.2 is methyl or ethyl, X is O; and Y comprises a 5-membered heterocyclic ring having one or two nitrogens.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: July 7, 1992
    Assignee: Pfizer Inc.
    Inventors: Nicholas A. Saccomano, Fredric J. Vinick
  • Patent number: 5098916
    Abstract: Certain propanobicyclic amine compounds are described for treatment of CNS disorders such as psychotic disorders, convulsions, dystonia and cerebral ischemia. Compounds of particular interest are of the formula ##STR1## wherein each R.sup.1, R.sup.2, R.sup.3, R.sup.4, Y and Z is independently selected from hydrido, hydroxy, alkyl, cycloalkyl, cycloalkylalkyl, phenalkyl, phenyl, alkoxy, phenoxy, phenalkoxy, alkoxyalkyl, halo, haloalkyl and hydroxyalkyl; wherein R.sup.3 and R.sup.4 may be taken together to form oxo;wherein each of R.sup.9, R.sup.10, R.sup.11, R.sup.12, R.sup.13 and R.sup.14 is independently selected from hydrido, alkyl, cycloalkyl, hydroxyalkyl, fluoroalkyl, cycloalkylalkyl, alkoxyalkyl, henalkyl and phenyl; wherein G within the nitrogen-containing cyclohetero moiety is selected from ##STR2## wherein R.sup.15 is selected from hydrido, alkyl, cycloalkyl, cycloalkylalkyl, phenyl, phenalkyl, alkoxyalkyl and hydroxyalkyl; wherein each of R.sup.16 and R.sup.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: March 24, 1992
    Assignee: G. D. Searle & Co.
    Inventors: Nancy M. Gray, Brian K. Cheng
  • Patent number: 5091526
    Abstract: Biologically active, enantiomerically substantially pure intermediates of trans-hexahydro-benzo[d]naphtho[2,1-b]azepines are prepared.The present invention involves a process for preparing compounds of the general formula 3: ##STR1## wherein: R* is ##STR2## Each R.sup.1 is independently H or alkyl; Q is methylene, --O-- or --S--;m and n are independently variable and may each have a value of 0, 1 or 2, with the provisos that the sum of m and n is not greater than 3, that m may not equal zero when Q is --O-- or --S--, and that when Q is --CH.sub.2 --, m and n cannot both be zero;X is hydrogen, halo, alkyl, alkylthio, alkylsulfinyl, alkylsufonyl, hydroxy, alkoxy or trifluoromethyl;Y is hydrogen, hydroxy, alkoxy, --OC(O)NR.sup.2 R.sup.3, --OC(O)--R.sup.9, --N(R.sup.1).sub.2, --NHC(O)R.sup.1 or --OP(O)(OH)OR.sup.1,R.sup.2 and R.sup.3 are the same or different and each is hydrogen (provided that both are not hydrogen), alkyl, aralkyl, cycloalkyl, aryl, hydroxyalkyl, or alkoxyalkyl;in addition, when one of R.sup.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: February 25, 1992
    Assignee: Schering Corporation
    Inventors: Joel G. Berger, John W. Clader
  • Patent number: 5075452
    Abstract: Compounds of the formula I ##STR1## in which A and X.sup.1 have the meaning given in patent claim 1 can be prepared in a simple manner, in a one-pot process and in high yields.
    Type: Grant
    Filed: December 6, 1989
    Date of Patent: December 24, 1991
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Richard Kirchlechner, Michael Casutt, Arno Basedow
  • Patent number: 5049673
    Abstract: The present invention discloses a new class of calcium specific fluorescent indicator dyes having visible excitation and emission wavelengths. The new fluorescent indicator dyes combine at least one tricyclic chromophore with a tetracarboxylate parent CA.sup.2+ chelating compound having the octacoordinate pattern of liganding groups characteristic of BAPTA to give a rhodamine-like or fluorescein-like fluorophore. Binding of calcium.sup.2+ increases the fluorescence of the new compounds by up to 40-fold. The calcium.sup.2+ dissociation constants are in the range 0.37-2.3 microM, so that the new indicators give better resolution of high [CA.sup.2+ ] levels than were previously obtainable with predecessor compounds such as quin-2 or fluo-2. The visible excitation wavelengths of the new compounds are more convenient for fluorescent microscopy and flow cytometry than the UV required by previous indicators.
    Type: Grant
    Filed: October 30, 1987
    Date of Patent: September 17, 1991
    Assignee: The Regents of the University of California
    Inventors: Roger Y. Tsien, Akwasi Minta
  • Patent number: 5017583
    Abstract: Compounds of the Formula I: ##STR1## and pharmaceutically acceptable salts thereof are leukotriene antagonists. These compounds inhibit SRS-A and leukotriene synthesis and are antagonists of SRS-A and are thus useful in the treatment of asthma, allergic disorders, inflammation, skin diseases and certain cardiovascular disorders.
    Type: Grant
    Filed: February 23, 1988
    Date of Patent: May 21, 1991
    Assignee: Merck Frosst Canada, Inc.
    Inventors: Robert N. Young, Joshua Rokach, Haydn R. Williams, Masatoshi Kakushima, Yvan Guindon
  • Patent number: 5015755
    Abstract: New 9-anthrylalkyl compounds having the general formula ##STR1## wherein R is hydrogen or an alkyl group, whereby, however, not more than one of the groups R is an alkyl group; R.sub.1 is hydrogen, lower alkyl, halogen or nitro; n is an integer of from 1 to 7, whereby, however, the total number of carbon atoms in the group --CHR--(CHR).sub.n -- does not exceed 8; and X is halogen, an azide group or a succinimidyl group.The new compounds are prepared from 9-anthrylalcohols which are reacted with a compound X--CO--X wherein X is a halogen, and then optionally with compounds giving azide or succinimidyl group. The compounds are used as derivatization reagents for separation and detection purposes.Intermediates for preparation of the above defined 9-anthrylalkyl compounds wherein one R is an alkyl group are 9-anthrylalcohols with the group --CHR--(CHR).sub.n --OH, wherein one R is an alkyl group.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: May 14, 1991
    Assignee: Eka Nobel AB
    Inventors: Hans-Dieter Becker, Stefan Einarsson, Andrzej Grzegorczyk, Bjorn Josefsson, Stig S. Lagerkvist, Per L. Moller, Domingo Sanchez, Johan H. Sorensen
  • Patent number: 5010105
    Abstract: Compounds of Formula (I) and (II): ##STR1## are HMG-CoA reductase inhibitors.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: April 23, 1991
    Assignee: Merck & Co., Inc.
    Inventor: Ta J. Lee
  • Patent number: 4996215
    Abstract: A new piperidine compound is pharmacologically effective for treatment of the arrythmia and is defined by the formula: ##STR1## in which R.sup.1 is a lower alkyl or a tolyl, R.sup.2 is hydrogen, hydroxyl, a lower alkoxy or a lower alkyl, R.sup.3 is hydrogen, a lower alkyl, a lower alkenyl, a cycloalkyl or a cycloalkylalkyl, X is --CO--, --CH.sub.2 -- or --CHOH--, g is an integer of 1 to 3, h is an integer of 1 to 3, Y is hydrogen, a lower alkyl, a lower alkenyl, cyano, --CH.sub.2 COOR, R being hydrogen or a lower alkyl, a cycloalkyl, a cycloalkylalkyl, ##STR2## l being 1 or 2, --A--B, A being --(CH.sub.2).sub.
    Type: Grant
    Filed: September 15, 1989
    Date of Patent: February 26, 1991
    Assignee: Eisai Co., Ltd.
    Inventors: Hitoshi Oinuma, Motosuke Yamanaka, Kazutoshi Miyake, Tomonori Hoshiko, Norio Minami, Tadao Shoji, Yoshiharu Daiku, Kohei Sawada, Kenichi Nomoto
  • Patent number: 4960881
    Abstract: The invention relates to carbonates of formula: ##STR1## in which X is a fluorine, chlorine or bromine atom and R.sup.1 is different from the ##STR2## group and represents: a substituted or non-substituted, saturated or unsaturated, aliphatic, araliphatic, primary, secondary, tertiary or cycloaliphatic radical. These .alpha.-chlorinated carbonates are prepared by the action of a compound of formula R.sup.1 OH on a chloroformate of formula: ##STR3## in a solvent medium in the presence of an acid scavenger which is added after the two preceding compounds. They are used to block the amine function of amino acids. The .alpha.-chlorinated carbonate and amino acid are reacted in a solvent medium at a temperature of -5.degree. to 100.degree. C. in the presence of an acid scavenger. Blocked amines are very useful in peptide synthesis.
    Type: Grant
    Filed: June 6, 1988
    Date of Patent: October 2, 1990
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Gerard Barcelo, Jean-Pierre Senet, Gerard Sennyey
  • Patent number: 4950756
    Abstract: 1-Nitroanthraquinone-2-carboxylic acid of the formula I ##STR1## is prepared by treating novel 2-substituted 1-nitroanthraquinones of the general formula II ##STR2## where R is --CH.dbd.CH--R.sup.1 or --CH.sub.2 --CHO, where R.sup.1 is C.sub.1 -C.sub.5 -dialkylamino or a cyclic 5- or 6-membered amine which may contain further hetero atoms, with oxidizing agents free of heavy metal.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: August 21, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Jochem Henkelmann, Helmut Hoch, Thomas-Michael Kahl, Gerhard Kilpper, Walter Maier
  • Patent number: 4927928
    Abstract: An aromatic benzamido compound having the formula ##STR1## wherein R.sub.1 represents --CH.sub.2 OH, --CHOHCH.sub.3 or --COR.sub.5,R.sub.5 represents hydrogen, lower alkyl, or --OR.sub.6 or ##STR2## R.sub.6 represents hydrogen, lower alkyl or mono- or polyhydroxyalkyl, r' and r" represent hydrogen, lower alkyl, mono or polyhydroxyalkyl, aryl or benzyl optionally substituted, the residue of an amino acid or aminated sugar or taken together form a heterocycle,R.sub.2 represents an .alpha.,.alpha.'-disubstituted alkyl having 4-12 carbon atoms or mono or polycyclic cycloalkyl having 5-12 carbon atoms, the linking carbon of which is quaternary,R.sub.3 represents hydrogen or alkyl having 1-10 carbon atoms, andR.sub.4 represents a hydrogen, lower alkyl or hydroxy, andthe salts of this aromatic benzamido compound when R.sub.6 represents hydrogen.
    Type: Grant
    Filed: January 21, 1987
    Date of Patent: May 22, 1990
    Assignee: Centre International de Recherches Dermatologiques C.I.R.D.
    Inventors: Braham Shroot, Jacques Eustache, Jean-Michel Bernardon
  • Patent number: 4917826
    Abstract: Provided are cyclic hydrocarbons of Formula I ##STR1## with an aminoalkyl sidechain that are useful for treating phospholipase A2 mediated conditions, diabetes, and obesity.
    Type: Grant
    Filed: June 16, 1987
    Date of Patent: April 17, 1990
    Assignee: The Upjohn Company
    Inventors: Roy A. Johnson, Gordon L. Bundy, Gilbert A. Youngdale, Douglas R. Morton, Donald P. Wallach, deceased
  • Patent number: 4910226
    Abstract: Invented are substituted acrylate analogues of steroidal synthetic compounds, pharmaceutical compositions containing the compounds, and methods of using these compounds to inhibit steroid 5-.alpha.-reductase. Also invented are intermediates used in preparing these compounds.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: March 20, 1990
    Assignee: SmithKline Beckman Corporation
    Inventors: Dennis A. Holt, Mark A. Levy, Brian W. Metcalf
  • Patent number: 4906655
    Abstract: Novel 1,2-cyclohexylaminoaryl amides useful as analgesic agents having very high kappa-opioid affinity and selectivity and potency and useful as analgesics, diuretics, antiinflammatory and psychotherapeutic agents are disclosed. Methods for making the compounds and pharmaceutical compositions containing them are also disclosed.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: March 6, 1990
    Assignee: Warner-Lambert Company
    Inventors: David C. Horwell, David C. Rees
  • Patent number: 4894451
    Abstract: The disclosure describes unsymmetrical 1,4-bis-(aminoalkylamino)-anthracene-9,10-diones useful in the treatment of neoplasms. Also described is a process of preparing same starting from 1,4-dimethoxyanthracene-9,10-dione which is reacted with an aminoalkylamine. The reaction product is treated with a dialkylaminoethylamine or a N-heteroethylamine to give the unsymmetrical compound.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: January 16, 1990
    Assignee: The University of Vermont
    Inventors: A. Paul Krapcho, Miles P. Hacker, John J. Landi, Jr., J. J. McCormack, Kenneth J. Shaw
  • Patent number: 4855316
    Abstract: Certain 1,2-diamino-4,5-dimethoxycyclohexane amide derivatives have analgesic activity, and bind selectively to the kappa opioid receptor site. Pharmaceutical compositions containing these compounds, and a method of alleviating pain in mammals are also disclosed.
    Type: Grant
    Filed: February 18, 1988
    Date of Patent: August 8, 1989
    Assignee: Warner-Lambert Company
    Inventors: David C. Horwell, Stephen J. Johnson
  • Patent number: 4835313
    Abstract: The invention relates to novel [5,6-dichloro-3-oxo-9a-propyl-2,3,9,9a -tetrahydrofluoren-7-yl)]alkanoic acids and alkanimidamides, their derivatives and their salts. The compounds are useful for the treatment and prevention of injury to the brain and of edema due to head trauma, stroke (particularly ischemic), arrested breathing, cardiac arrest, Reye's syndrome, cerebral thrombosis, cerebral embolism, cerebral hemorrhage, cerebral tumors, encephalomyelitis, spinal cord injury, hydrocephalus, post-operative brain injury trauma, edema due to cerebral infections, various brain concussions and elevated intracranial pressure.
    Type: Grant
    Filed: December 10, 1987
    Date of Patent: May 30, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Adolph M. Pietruszkiewicz, Edward J. Cragoe, Jr., Otto W. Woltersdorf, Jr.
  • Patent number: 4782092
    Abstract: Chemical compounds are provided that are novel 5,8-dichloro-4-hydroxy-1-[(aminoalkyl)amino]-9,10-anthracenediones (I), as well as a method for their production, pharmaceutical compositions comprising the compounds, and methods of treatment using the compounds in dosage form. Compounds of the invention have pharmacological properties and are useful antimicrobial agents and antitumor agents.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: November 1, 1988
    Assignee: Mid-America Cancer Center
    Inventors: Robert K. Zee-Cheng, Chia C. Cheng
  • Patent number: 4661512
    Abstract: The present invention relates to new adamantanamine derivatives.These derivatives correspond to the general formula I: ##STR1## in which: R represents hydrogen or a substituted or unsubstituted, linear or branched alkyl radical containing from 1 to 7 carbon atoms.Drugs possessing anticonvulsant properties.
    Type: Grant
    Filed: October 16, 1985
    Date of Patent: April 28, 1987
    Assignee: S. A. Panmedica
    Inventors: Claude Laruelle, Marcel Lepant, Bernard Raynier
  • Patent number: 4642373
    Abstract: 1,2,3,4,4a,4b,5,6,7,8,8a,12b-Dodecahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy or alkoxyalkyl)triphenylenes, 2,3,3a,3b,4,5,6,7,7a,11b-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)-1H-cyclopenta[1]-phenanthrenes, 2,3,4,4a,4b,5,6,7,8,8a-decahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy, alkoxyalkyl, aralkyl, aralkoxy, aryloxyalkyl or aralkoxyalkyl)-1H-pyrido[1,2-f]phenanthridines, and 1,2,3,3a,3b,4,5,6,7,7a-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)pyrrolo[1,2-f]phenanthridines and derivatives are valuable as central nervous system active agents or as intermediates to compounds having such activity.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: February 10, 1987
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4568743
    Abstract: The invention concerns 1,8-dihydroxy-9-anthrones substituted in the 10-position of the formula: ##STR1## in which: R.sub.1 represents a group taken from the set constituted by: wherein R.sub.2 represents H, C.sub.1-8 alkyl, C.sub.1-3 mono- or poly-hydroxyalkyl, carbamoly or phenyl,R.sub.3, R.sub.4, and R.sub.5 represent H, C.sub.1-8 alkyl, C.sub.3-8 mono- or poly-hydroxyalkyl, possibly interrupted by an oxygen, C.sub.3-6 cycloalkyl, or R.sub.3 and R.sub.4 form a divalent group: --(CH.sub.2).sub.(4 or 5) --, --(CH.sub.2).sub.2 --O--(CH.sub.2).sub.2 --, or --(CH.sub.2).sub.2 --N(R.sub.8)--(CH.sub.2).sub.2 --, R.sub.8 being H, --CH.sub.3, or --CH.sub.2 CH.sub.2 OH,R.sub.6 represents 13 CO.sub.2 R.sub.5, --CN, --CHO, --CONH.sub.2, or --CONH--CH.sub.2 OH,and R.sub.7 and R'.sub.7 are H or --CH.sub.3, and their optical isomers.Utilization of the compounds (I) in human or veterinary medicine, in particular in the treatment of psoriasis and of warts, and in cosmetics.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: February 4, 1986
    Assignee: Groupement d'Interet Economique dit Centre International de Recherches Dermatolgiques C.I.R.D.
    Inventors: Braham Shroot, Jean Maignan, Gerard Lang
  • Patent number: 4540519
    Abstract: This disclosure describes symmetrical 1,4-bis-(substituted-amino)-5,8-hydroxyanthraquinones useful as chelating agents and for inducing regression and/or palliation of cancer diseases in mammals.
    Type: Grant
    Filed: April 9, 1984
    Date of Patent: September 10, 1985
    Assignee: American Cyanamid Company
    Inventors: Keith C. Murdock, Frederick E. Durr
  • Patent number: 4513002
    Abstract: 1-[2-(4,5,10,11-Tetrahydro-1H-dibenzo[a,d]cyclohepten-5-yl)ethyl]pyrrolidin e of the formula ##STR1## and its pharmaceutically acceptable acid addition salts, prepared through various intermediates, are described. The compounds have valuable histamine-H.sub.1 antagonistic properties and are suitable for the control or prevention of allergic reactions, such as, urticaria, hay fever, anaphylaxis and over-sensitivity to medicaments.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: April 23, 1985
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Werner Aschwanden, Quirico Branca, Emilio Kyburz, Rudolf Pfister
  • Patent number: 4486598
    Abstract: Novel compounds of the following general formula: ##STR1##
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: December 4, 1984
    Assignee: The Upjohn Company
    Inventor: Paul A. Aristoff
  • Patent number: 4477668
    Abstract: (+)-5-Methyl-10,11-dihydro-5H-dibenzo[a,d]-cyclohepten-5,10-imine, and its pharmaceutically acceptable salts is useful as an anxiolytic, antidepressant, anticonvulsant, muscle relaxant and in the treatment of mixed anxiety-depression, minimal brain dysfunction and extrapyramidal disorders such as Parkinson's disease. The racemate of the compound is produced by a four-step synthetic process in about 65% yield from 5H-dibenzo[a,d]cyclohepten-5-one.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: October 16, 1984
    Assignee: Merck & Co., Inc.
    Inventors: Dean R. Bender, Sandor Karady, Theresa Rothauser
  • Patent number: 4473704
    Abstract: 1,2,3,4,4a,4b,5,6,7,8,8a,12b-Dodecahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy or alkoxyalkyl)triphenylenes, 2,3,3a,3b,4,5,6,7,7a,11b-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)-1H-cyclopenta[1]phenanthrenes, 2,3,4,4a,4b,5,6,7,8,8a-decahydro-7-(oxo, hydroxy or amino)-9-hydroxy-11-(alkyl, alkoxy, alkoxyalkyl, aralkyl, aralkoxy, aryloxyalkyl or aralkoxyalkyl)-1H-pyrido[1,2-f]phenanthridines, and 1,2,3,3a,3b,4,5,6,7,7a-decahydro-6-(oxo, hydroxy or amino)-8-hydroxy-10-(alkyl, alkoxy or alkoxyalkyl)pyrrolo[1,2-f]phenanthridines and derivatives are valuable as central nervous system active agents or as intermediates to compounds having such activity.
    Type: Grant
    Filed: March 16, 1982
    Date of Patent: September 25, 1984
    Assignee: Pfizer Inc.
    Inventors: James F. Eggler, Michael R. Johnson, Lawrence S. Melvin, Jr.
  • Patent number: 4461899
    Abstract: A series of ester and salt derivatives of fluorene-9-carboxylic acid and fluorene-1-carboxylic acid exhibit significant plant growth regulating properties, useful in controlling the size, shape, dormancy time, flowering time and/or fruit setting of plants, depending upon the concentrations used. They may also be used to control the growth rate, texture and color of turf grass. Presently preferred compounds include the cis-2,5-dimethylpyrrolidine salt of 1-fluorenecarboxylic acid, 9-cis-2,5-dimethyl-1-pyrrolidinyl-2-chlorofluorene-9-carboxylic acid, methyl ester, the 2,6-dimethylpiperidine salt of 1-fluorenecarboxylic acid, and the cis-2,5-dimethylpyrrolidine salt of 9-hydroxyfluorene-9-carboxylic acid.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: July 24, 1984
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: William J. Pyne, Han S. Ku, Robert E. Holm
  • Patent number: 4448972
    Abstract: A group of adamantyl containing intermediates is useful to prepare certain oligopeptides which improve kidney function. A representative species of this group is N-(1-adamantyl)-ethanoylproline.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: May 15, 1984
    Assignee: SmithKline Beckman Corporation
    Inventor: Francis R. Pfeiffer
  • Patent number: 4440692
    Abstract: Substituted carbonic acid esters and urethanes having the formula ##STR1## wherein Ad is a substituted or unsubstituted 1-adamantyl residue, R.sup.1 and R.sup.2 are saturated alkyl groups and X is chlorine, fluorine, azido or unsubstituted or substituted phenoxy. These compounds can be used in the synthesis of various peptides.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: April 3, 1984
    Inventors: Hubert Kalbacher, Wolfgang Voelter
  • Patent number: 4428953
    Abstract: Novel pleuromutilin derivatives of formula I, ##STR1## in which R.sub.1 is ethyl or vinyl,m is 0 or 1, andR.sub.2 is a heterocyclic radical, in which a 5- or 6-membered, unsaturated or saturated heterocyclic ring containing one or more hetero atoms selected from oxygen, sulphur and nitrogen, is attached to the --S(CH.sub.2).sub.m --group,provided that when m is 0, R.sub.2 is other than pyridyl,their production and use as antimicrobial agents are described.
    Type: Grant
    Filed: March 8, 1982
    Date of Patent: January 31, 1984
    Assignee: Sandoz, Ltd.
    Inventors: Heinz Berner, Friederike Turnowsky, Georg Laber, Johannes Hildebrandt
  • Patent number: 4405524
    Abstract: The present invention relates to anthraquinone compounds of formula I, ##STR1## in which R.sub.1 is alkyl or cycloalkyl,R.sub.2 is hydrogen, methyl or ethyl,R.sub.3 is hydrogen or methyl,eitherR.sub.4 is hydrogen, methyl or ethyl, and Y--CO-- is the radical of an organic aliphatic aromatic or araliphatic carboxylic acid containing a total of 2 to 12 carbon atoms,orR.sub.4 together with the radical Y--CO-- and the nitrogen atom to which they are bound signify a cyclic imide of a dicarboxylic acid containing a total of 4 to 8 carbon atoms,X is a direct bond or (C.sub.1-3)alkylene,n is 0 or 1which compounds are useful as colorants. More particularly those compounds where n is 1 are useful as anionic dyestuffs and those compounds where n is 0 are useful as pigments.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: September 20, 1983
    Assignee: Sandoz Ltd.
    Inventor: Roland Wald
  • Patent number: 4379785
    Abstract: What are disclosed are sulfonyl ureas of the formula ##STR1## in which R.sup.1, X and Y are as defined in the specification, and their physiologically acceptable salts, pharmaceutical formulations on the basis of these compounds, and their use in the treatment of diabetes.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: April 12, 1983
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Rudi Weyer, Volker Hitzel, Karl Geisen, Gunter Regitz
  • Patent number: 4337354
    Abstract: The invention relates to novel [(5,6,9a-substituted-3-oxo-1,2,9,9a-tetrahydro-3H-fluoren-7-yl)oxy]alkanoi c and cycloalkanoic acid and their analogs, esters, salts and derivatives. These compounds are synthesized by methods selected from a number of synthetic routes depending on the particular structure, choice of intermediate or preferred reaction sequence. The compounds are useful in the treatment and prevention of injury to the brain and spinal chord due to accidents, ischemic stroke and hydrocephalus; compositions for such uses are also disclosed.
    Type: Grant
    Filed: February 19, 1981
    Date of Patent: June 29, 1982
    Assignee: Merck & Co., Inc.
    Inventors: Edward J. Cragoe, Jr., Gerald E. Stokker, Norman P. Gould