Nitrogen Attached Indirectly To The Phosphorus By Acyclic Nonionic Bonding Patents (Class 558/166)
  • Patent number: 5521237
    Abstract: Selected alkanolamine esters of acyclic phosphites are particularly effective as process stabilizers for polyolefins providing for melt flow stabilization and resistance to discoloration during said processing.
    Type: Grant
    Filed: June 6, 1994
    Date of Patent: May 28, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Seltzer, Wha Chen, Roswell E. King, III, Paul Odorisio, Rita Pitteloud, Sai P. Shum
  • Patent number: 5510504
    Abstract: A process for the preparation of .alpha.- or .alpha.,.alpha.'-substituted derivatives of the bis(aminomethyl)phosphinic acid of the formula I and their acid or basic salts, ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are defined as in the description, wherein a bis(aminomethyl)phosphinate is converted into the corresponding bisimine, which is alkylated by R.sup.2 and R.sup.3 in the .alpha.- and/or .alpha.,.alpha.'-position after reaction with a base, and is converted into a compound of the formula I by subsequent treatment with an acid.
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: April 23, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Anuschirwan Peyman, Karl-Heinz Budt, Jorg Spanig, Jian-Qi Li, Bernd Stowasser
  • Patent number: 5508273
    Abstract: Compounds represented by the formula I: ##STR1## are disclosed as agents for use in treating bone wasting diseases.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: April 16, 1996
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Scott Beers, Elizabeth A. Malloy, Charles Schwender
  • Patent number: 5453524
    Abstract: The present invention provides a phosphorus-containing isoprenoid derivative represented by the following general formula (I) or a pharmacologically acceptable salt thereof, which is useful as a preventive and therapeutic agent for diseases for which a squalene synthetase inhibiting action is efficacious: ##STR1## wherein R.sup.1 and R.sup.2 each represent a hydrogen atom, a lower alkyl, cycloalkyl, alkenyl or alkynyl group, an aryl group which may be substituted, an arylalkyl group in which the aryl group may be substituted, or a heteroaryl or heteroarylalkyl group: R.sup.3 and R.sup.4 each represent a hydrogen atom, a lower alkyl group or an alkali metal; Y represents a group represented by the formula: ##STR2## (wherein R.sup.5 and R.sup.6 each represent a hydrogen atom, a lower alkyl group or an alkali metal or a group represented by the formula: --CO.sub.2 R.sup.7 (wherein R.sup.7 represents a hydrogen atom, a lower alkyl group or an alkali metal); Z represents a group represented by the Formula: --(CH.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: September 26, 1995
    Assignee: Eisai Co., Ltd.
    Inventors: Katsuya Tagami, Ichirou Yoshida, Naoki Kobayashi, Yoshio Fukuda, Yoshihito Eguchi, Makoto Nakagawa, Hironobu Hiyoshi, Hironori Ikuta, Makoto Kaino, Kenji Hayashi, Issei Ohtsuka, Shinya Abe, Shigeru Souda
  • Patent number: 5434145
    Abstract: The present invention relates to certain polyamine thiols which are useful as radioprotective agents.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: July 18, 1995
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Michael L. Edwards, Ronald D. Snyder
  • Patent number: 5424441
    Abstract: N-aralkyl- and N-heteroaralkyl-aminoalkanephosphinic acids of formula I ##STR1## wherein R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic or heteroarylaliphatic radical having at least 2 carbon atoms, R.sub.1 is hydrogen or hydroxy, R.sub.2 is an araliphatic or heteroarylaliphatic radical substituted by free or functionally modified carboxy that is bonded directly or by way of a spacer, and R.sub.3 is hydrogen, lower alkyl or a group R.sub.2, and the salts thereof have valuable nootropic and anti-epileptic properties and can be used in the preparation of a nootropic or anti-epileptic medicament.
    Type: Grant
    Filed: May 4, 1994
    Date of Patent: June 13, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Stuart J. Mickel, Wolfgang Frostl, Pascal Furet
  • Patent number: 5424471
    Abstract: The present invention relates to a sterile, stable vacuum dried crystalline amifostine composition and, optionally, pharmaceutically acceptable excipient(s). Typically, the crystalline compositions of the present invention exhibit enhanced stability at temperatures ranging from about 4.degree. C. to about ambient temperature for a period of at least 2 years relative to existing solid vacuum dried amorphous amifostine preparations. The reconstituted compositions of the present invention are suitable for administration to humans as a radio- or chemoprotecting agent.
    Type: Grant
    Filed: July 29, 1993
    Date of Patent: June 13, 1995
    Assignee: U.S. Bioscience, Inc.
    Inventors: Paul E. Kennedy, Roger A. Rajewski, John M. Baldoni
  • Patent number: 5424303
    Abstract: The present invention relates to novel aminophosphonate derivatives substituted in .alpha. position by phenol groups, of formula (I): ##STR1## in which: X.sup.1, X.sup.2, X.sup.3, R.sup.1, R.sup.2, A, B, Z and n are defined in claim 1, as well as their preparations and the pharmaceutical compositions comprising them.
    Type: Grant
    Filed: February 26, 1993
    Date of Patent: June 13, 1995
    Assignee: Symphar SA
    Inventors: Hieu T. Phan, Lan M. Nguyen, Eric Niesor, Yves Guyon-Gellin, Craig L. Bentzen
  • Patent number: 5424474
    Abstract: The present invention relates to fluorinated carboxylic acid esters of phosphono- and phosphinocarboxylic acids containing hydroxyl and/or mercapto groups, their use as waterproofing and/or oil-repellency agents, and a method for their preparation.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: June 13, 1995
    Assignee: Bayer AG
    Inventors: Klaus Pohmer, Rainer Weber, Hans-Dieter Block, Hans-Heinrich Moretto
  • Patent number: 5414102
    Abstract: The present invention relates to fluorinated carboxylic acid esters of phosphonocarboxylic acids containing acrylate and/or methacrylate groups, their use as waterproofing or oil-repellency agents, and a method for their preparation.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: May 9, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Klaus Pohmer, Rainer Weber, Hans-Dieter Block, Hans-Heinrich Moretto
  • Patent number: 5407922
    Abstract: Compounds having GABA.sub.B -antagonistic properties, for example those of formula I ##STR1## wherein one of the radicals R.sub.1, R.sub.2 and R.sub.3 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another is hydrogen or, in the case of R.sub.1 or R.sub.2, hydroxy or, in the case of R.sub.1, halogen or, in the case of R.sub.2 together with R.sub.2 ', oxo, and the remaining radical is hydrogen, R.sub.1 ' is hydrogen or halogen, R.sub.2 ' is hydrogen, hydroxy or, together with R.sub.2, is oxo, R.sub.4 and R.sub.5 are hydrogen or R.sub.4 is an araliphatic or heteroarylaliphatic radical and R.sub.5 is hydrogen or an aliphatic radical, and R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical having at least 2 carbon atoms or, when R.sub.1 is hydrogen or hydroxy, R.sub.2 is an aromatic radical and R.sub.1 ', R.sub.2 ' and R.sub.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: April 18, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Christian Marescaux, Raymond Bernasconi, Markus Schmutz, Wolfgang Frostl, Stuart J. Mickel
  • Patent number: 5380904
    Abstract: A compound of formula: ##STR1## in which X.sup.1 is a reactive group that can react to form a covalent bond with a reactive group on the surface of a material to be rendered biocompatible, X.sup.2 is a group --O.sup..crclbar. or a precursor of such a group, n is 2, 3 or 4, Y is a group --N.sup..sym. R.sub.3 A.sup..crclbar. wherein each R, which may be the same or different, is a C.sub.1 -C.sub.4 alkyl group and A.sup..crclbar. is an anion present when X.sup.2 is an electrically neutral group or Y is ##STR2## wherein R.sup.1 together with X.sup.2 forms a direct bond between the nitrogen and the phosphorus atoms.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: January 10, 1995
    Assignee: Biocompatibles Ltd.
    Inventors: Dennis Chapman, Aziz A. Durrani
  • Patent number: 5362899
    Abstract: A stereospecific method of preparing alpha-aminophosphonic acids and derivatives thereof is provided. A protected amino acid is converted to a acyl aroyl or diacyl peroxide which spontaneously rearranges to form an alpha-amino ester. This rearrangement occurs stereospecifically with retention of configuration. The ester is subsequently converted to an appropriate leaving group and displaced with a phosphite yielding a chiral alpha-aminophosphonic acid or derivative.Alpha-aminophosphonic acids are useful for the synthesis of peptide analogs that possess a phosphonate linkage in the place of an amide linkage. This substitution can impart protease resistance in therapeutic peptides thereby increasing the serum half-life.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: November 8, 1994
    Assignee: Affymax Technologies, N.V.
    Inventor: David A. Campbell
  • Patent number: 5344930
    Abstract: Compounds of the general formula: ##STR1## are useful as surfactants in the preparation of fluorocarbon emulsions, which can be used as oxygen-carrying blood substitutes, and for many other therapeutic and diagnostic applications. They are further useful in liposomal formulations which are themselves therapeutic agents or provide a vehicle for such agents.
    Type: Grant
    Filed: November 8, 1993
    Date of Patent: September 6, 1994
    Assignee: Alliance Pharmaceutical Corp.
    Inventors: Jean G. Riess, Francois Jeanneaux, Marie-Pierre Krafft, Catherine Santaella, Pierre Vierling
  • Patent number: 5332729
    Abstract: N-aralkyl- and N-heteroaralkyl-aminoalkanephosphinic acids of formula I ##STR1## wherein R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic or heteroarylaliphatic radical having at least 2 carbon atoms,R.sub.1 is hydrogen or hydroxy,R.sub.2 is an araliphatic or heteroarylaliphatic radical substituted by free or functionally modified carboxy that is bonded directly or by way of a spacer, andR.sub.3 is hydrogen, lower alkyl or a group R.sub.2, and the salts thereof have valuable nootropic and anti-epileptic properties and can be used in the preparation of a nootropic or anti-epileptic medicament.
    Type: Grant
    Filed: May 3, 1993
    Date of Patent: July 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Stuart J. Mickel, Wolfgang Frostl, Pascal Furet
  • Patent number: 5322871
    Abstract: Compounds of the formula I ##STR1## in which x is 1, 2 or 3, and, if x=1, R.sup.1 is C.sub.1 -C.sub.30 alkyl, C.sub.1 -C.sub.18 alkyl substituted by halogen, --COOR.sup.2, --CN, --NR.sup.3 R.sup.4 or by --CONR.sup.3 R.sup.4, C.sub.2 -C.sub.18 alkyl which is interrupted by --NR.sup.5 --, --O-- or --S--, C.sub.3 -C.sub.18 alkenyl, C.sub.5 -C.sub.12 cycloalkyl, phenyl-C.sub.1 -C.sub.4 alkyl, phenyl which is unsubstituted or substituted by C.sub.1 -C.sub.12 alkyl, halogen, phenyl-C.sub.1 -C.sub.4 alkyl and/or C.sub.1 -C.sub.4 alkoxy, or R.sub.1 is naphthyl, a radical of the formula ##STR2## R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.5 -C.sub.12 cycloalkyl or phenyl-C.sub.1 -C.sub.4 alkyl, R.sup.6 is hydrogen, methyl, allyl or benzyl, R.sup.7 is hydrogen or --OR.sup.9, R.sup.8 is hydrogen or methyl, R.sup.9 is hydrogen or C.sub.1 -C.sub.30 alkyl, R.sup.10 and R.sup.11, independently of one another, are hydrogen or C.sub.1 -C.sub.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: June 21, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Rita Pitteloud, Peter Hofmann, Rudolf Maul, Volker Schenk, Eduard Troxler, Horst Zinke
  • Patent number: 5315035
    Abstract: The present invention is concerned with aniline derivatives of the general formula: ##STR1## wherein R.sub.1 is hydrogen or a lower alkyl or aryl, R.sub.2 is hydrogen or a lower alkyl which can be substituted by hydroxyl, amino carboxyl, lower alkoxycarbonyl, lower alkanoylamide lower alkyl or aryl or by a group of the structure ##STR2## is which R.sub.5 and R.sub.6 have the meanings given hereinafter, R.sub.3 is a hydrogen or halogen atom or a carboxyl group, R.sub.4 and R'.sub.4, which can be the same or different, are hydrogen or halogen, carboxyl or lower alkoxy or lower alkyl radicals which are preferably in the m-position, R.sub.5 is hydrogen or a lower alkyl and R.sub.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: May 24, 1994
    Assignee: Boehringer Mannheim GmbH
    Inventors: Gunter Frey, Gerd Zimmermann
  • Patent number: 5288418
    Abstract: Amine coupled condensation products of hindered phenols and phosphites have been found to be effective antioxidant/antiwear additives for lubricants.
    Type: Grant
    Filed: December 3, 1992
    Date of Patent: February 22, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Liehpao O. Farng, Andrew G. Horodysky, William F. Olszewski
  • Patent number: 5281747
    Abstract: P-substituted aminoalkylphosphinic acids of the formula ##STR1## wherein R denotes an optionally fluorinated methyl group, R.sub.1 denotes hydrogen, lower alkyl, lower alkoxy, hydroxy, halogen or a fluorinated methyl group and R.sub.2 and R.sub.3 denote hydrogen or R.sub.2 denotes hydroxy, lower alkoxy or halogen and R.sub.3 is hydrogen or R.sub.2 and R.sub.3 together represent an oxo group, and their pharmaceutically acceptable salts are active as GABA.sub.B.sup.- agonists and can be used in the treatment of spinal spasticity, multiple sclerosis and cerebral palsy, trigeminus neuralgia, drug withdrawal syndromes and/or conditions of pain. They can be manufactured by methods known per se and suitable such methods are described.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: January 25, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Roger G. Hall, Ludwig Maier, Wolfgang Frostl
  • Patent number: 5274162
    Abstract: The composition, methods of synthesis, and applications of a new class of tumor selective antineoplastic drugs is described. These novel antineoplastic agents are of the general structure: A-C-B. The agents are designed with two key functionalities: a trigger which toxifies the drug; (A) and a deactivator which detoxifies the drug (B) The trigger is selected such that it is activated by an enzyme which is present in elevated levels in the tumor. The deactivator is selected such that it is actuated by an enzyme ubiquitous to all tissues. The fate of the drug in a given cell is then determined by the ratio of the enzymatic activity that triggers toxication to the enzymatic activity which detoxifies the drug. The partitioning of the drug between toxic metabolite and nontoxic metabolite defines the resulting specificity of cytotoxic effect.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: December 28, 1993
    Inventor: Arnold Glazier
  • Patent number: 5240946
    Abstract: A compound of the formula: ##STR1## in which R.sup.1 is hydrogen, alkyl or phenylalkyl; R.sup.2 is hydrogen, alkyl, alkenyl or phenylalkyl; or R.sup.1 and R.sup.2 taken together are --CH.sub.2 CH.sub.2 --, --CH.sub.2 C(R.sup.6)(R.sup.7)CH.sub.2 -- or --CH.sub.2 C(R.sup.8)(R.sup.9)--C(R.sup.10)(R.sup.11)CH.sub.2 --, where R.sup.6, R.sup.8 and R.sup.10 are, independently, hydrogen, alkyl of 1 to 6 carbon atoms or hydroxyl and R.sup.7, R.sup.9 and R.sup.11 are, independently, hydrogen or alkyl of 1 to 6 carbon atoms; A is alkylene or alkenylene; X is CO.sub.2 R.sup.3 in which R.sup.3 is hydrogen or alkyl, P(O)(OR.sup.4)(OR.sup.5) in which R.sup.4 and R.sup.5 are, independently, hydrogen or alkyl, 3,5-dioxo-1,2,4-oxadiazolidin-2-yl or 5-tetrazolyl; or a pharmaceutically acceptable salt thereof are useful as neuroprotectants.
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: August 31, 1993
    Assignee: American Home Products Corporation
    Inventors: William A. Kinney, Deanna C. Garrison
  • Patent number: 5229379
    Abstract: Compounds having GABA.sub.B -antagonistic properties, for example those of formula I ##STR1## wherein one of the radicals R.sub.1, R.sub.2 and R.sub.3 is hydrogen or an aliphatic, cycloaliphatic, araliphatic or aromatic radical, another is hydrogen or, in the case of R.sub.1 or R.sub.2, hydroxy or, in the case of R.sub.1, halogen or, in the case of R.sub.2 together with R.sub.2 ', oxo, and the remaining radical is hydrogen, R.sub.1 ' is hydrogen or halogen, R.sub.2 ' is hydrogen, hydroxy or, together with R.sub.2, is oxo, R.sub.4 and R.sub.5 are hydrogen or R.sub.4 is an araliphatic or heteroarylaliphatic radical and R.sub.5 is hydrogen or an aliphatic radical, and R is an aliphatic, cycloaliphatic, cycloaliphatic-aliphatic, araliphatic, heteroarylaliphatic or aromatic radical having at least 2 carbon atoms or, when R.sub.1 is hydrogen or hydroxy, R.sub.2 is an aromatic radical and R.sub.1 ', R.sub.2 ' and R.sub.
    Type: Grant
    Filed: June 20, 1991
    Date of Patent: July 20, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Christian Marescaux, Raymond Bernasconi, Markus Schmutz, Wolfgang Frostl, Stuart J. Mickel
  • Patent number: 5229162
    Abstract: A compound of formula: ##STR1## in which X.sup.1 is a reactive group that can react to form a covalent bond with a reactive group on the surface of a material to be rendered biocompatible, X.sup.2 is a group -O.sup..crclbar. or a precursor of such a group, n is 2, 3 or 4, Y is a group --N.sup..sym. R.sub.3 A.sup..crclbar. wherein each R, which may be the same or different, is a C.sub.1 -C.sub.4 alkyl group and A.sup..crclbar. is an anion present when X.sup.2 is an electrically neutral group or Y is ##STR2## wherein R.sup.1 together with X.sup.2 forms a direct bond between the nitrogen and the phosphorus atoms.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: July 20, 1993
    Assignee: Biocompatibles Ltd.
    Inventors: Dennis Chapman, Aziz A. Durrani
  • Patent number: 5217964
    Abstract: The present invention relates to certain polyamine thiols which are useful as radioprotective agents.
    Type: Grant
    Filed: January 23, 1991
    Date of Patent: June 8, 1993
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Michael L. Edwards, Ronald D. Snyder
  • Patent number: 5189030
    Abstract: Compounds of formula I ##STR1## wherein R and R.sub.1 are each independently C.sub.1 -C.sub.4 alkoxy or hydroxy and X and Y are as defined herein, as well as the metal, ammonium or substituted ammonium salts thereof, are useful insecticides, acaricides and, in particular, fungicides. They can be applied to plants or to the locus thereof in the form of compositions or used as seed dressings.
    Type: Grant
    Filed: January 29, 1992
    Date of Patent: February 23, 1993
    Assignee: Ciba-Geigy Corporation
    Inventor: Ludwig Maier
  • Patent number: 5151414
    Abstract: Compounds of formula ##STR1## (wherein R, R.sub.1, R.sub.2, R.sub.3, n, m and p have the meanings reported in the specification), their preparation and the compositions for pharmaceutical use containing them as active ingredient are described.The compounds of formula I have dopaminergic vasodilator activity and they may be used in pharmaceutical field.
    Type: Grant
    Filed: July 31, 1991
    Date of Patent: September 29, 1992
    Assignee: SIMES Societa Italiana Medicinali e Sintetici S.p.A.
    Inventors: Cesare Casagrande, Gabriele Norcini, Francesco Santangelo, Claudio Semeraro
  • Patent number: 5144045
    Abstract: Phospocholine derivatives having the formula: ##STR1## in which W, Z, Q and R are described in the specification are disclosed as useful for inhibiting the enzyme phospholipase A.sub.2. Methods of making and using the compounds are also disclosed.
    Type: Grant
    Filed: November 13, 1990
    Date of Patent: September 1, 1992
    Assignee: American Cyanamid Company
    Inventors: Allan Wissner, Robert E. Schaub, Kenneth E. Green, Philip R. Hamann
  • Patent number: 5142085
    Abstract: A process for the preparation of a compound of the formula ##STR1## wherein alk.sub.1 and alk.sub.2 are individually alkyl of 1 to 8 carbon atoms comprising reacting a compound of the formula ##STR2## with a dehydrating agent to obtain the corresponding compound of formula I.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: August 25, 1992
    Assignee: Roussel Uclaf
    Inventors: Jean-Marc Barry, Serge Droux, Giuseppe Gigliotti
  • Patent number: 5118674
    Abstract: The invention relates to 3-(N-methyl-N-alkyl)-amino 2-methoxymethylene propan 1-ol derivatives of the formula ##STR1## wherein R stands for an alkyl chain, A stands for: ##STR2## and Y represents various quaternary ammonia, to a preparation process of said compounds and to therapeutic compositions containing the same.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: June 2, 1992
    Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)
    Inventors: Pierre Braquet, Colette Broquet, Benedicte Vandamme, Paola Principe-Nicolas
  • Patent number: 5104579
    Abstract: It has now been discovered that oligomers of C.sub.6 - C.sub.20 alpha-olefins, such as 1-decene, with branch ratios below 0.19 and high viscosity indices (HVI) can be functionalized to provide unique phosphite derivatives. Functionalized polyalpha-olefin lubricants compositions are prepared with superior properties by adding functionalized organophosphites to the olefinic bond of HVI-PAO. The invention encompasses a process for the preparation of lubricant range hydrocarbons containing phosphonate functional groups, comprising;reacting olefinic C.sub.20 + polyalpha-olefin oligomers having a branch ratio of less than 0.19 and phosphite ester in a mixture with peroxide catalyst at elevated temperature whereby phosphite ester adduct of said polyalpha-olefin is formed;separating said reaction mixture products and recovering said adduct.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: April 14, 1992
    Assignee: Mobil Oil Corporation
    Inventors: Linda A. Benjamin, Derek A. Law, Andrew G. Horodysky
  • Patent number: 5099056
    Abstract: A process for the production of N-substituted aminoethylphosphonic acid derivatives represented by the formula (I) is disclosed ##STR1## wherein R.sub.1 is an alkyl having 1-18 carbon atoms or a cycloolkyl having 3-18 carbon atoms and R.sub.2 is hydrogen, methyl or ethyl. This process comprises the steps of: reacting N-alkyl and N-cycloalkylhexahydro-s-triazine of formula ##STR2## with trialkylphosphites of formulaP(OR.sub.2).sub.3in the presence of titanium tetrahydrochloride at -20.degree.-10.degree. C. to yield N-substituted aminomethylphosphonic acid dialkylesters, followed by hydrolysis to yield N-substituted aminomethylphosphonic acid.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: March 24, 1992
    Assignee: Korea Institute of Science and Technology
    Inventors: Hyun-Joon Ha, Gong-Sil Nam
  • Patent number: 5091551
    Abstract: A compound of formula: ##STR1## in which X.sup.1 is a reactive group that can react to form a covalent bond with a reactive group on the surface of a material to be rendered biocompatible, X.sup.2 is a group --0.crclbar. or a precursor of such a group, n is 2, 3 or 4, Y is a group N.sup..sym. R.sub.3 A.sup..crclbar. A wherein each R, which may be the same or different, is a C.sub.1 -C.sub.4 alkyl group and A.sup..crclbar. is an anion present when X.sup.2 is an electrically neutral group or Y is ##STR2## wherein R.sup.1 together with X.sup.2 forms a direct bond between the nitrogen and the phosphorus atoms.
    Type: Grant
    Filed: April 18, 1990
    Date of Patent: February 25, 1992
    Assignee: Biocompatibles Ltd.
    Inventors: Dennis Chapman, Aziz A. Durrani
  • Patent number: 5087721
    Abstract: Novel radioiodinated analogues of naturally-occurring phospholipid ethers are tumor-specific and have a triglycerol backbone structure which is substituted at the 3-position with an alkyl phosphocholine and include a monoiodinated benzoyl side chain substituted at either the 1- or 2-position. In some embodiments of the invention, the monoiodinated aralkyl side chain may be substituted directly onto alkyl phosphocholine in accordance with general Formula: provided that one and only one of X or Y is a monoiodinated aralkyl ##STR1## where Y=NH.sub.2, NR.sub.2, NR.sub.3, NR.sub.2 R'R=alkyl, aralkylR'=a monoiodinated aralkyl, such as ##STR2## Z=.sup.122 I, .sup.123 I, .sup.125 I, and .sup.131 I n=1-15X=a monoiodinated aralkyl, like R', where n=1-15; or an alkyl, such as --CH.sub.2 --(CH).sub.m --CH.sub.3, where m=1-15.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: February 11, 1992
    Assignee: The University of Michigan
    Inventors: Raymond E. Counsell, Karen L. Meyer, Susan W. Schwendner, Terushi Haradahira
  • Patent number: 5071577
    Abstract: Novel phosphite derivatives of propylene based lube olefins are novel lubricating fluid media with internal synergistic multifunctional extreme pressure, antiwear and antioxidant properties. These compounds exhibit the same multifunctional characteristics when used in minor additive amounts in either mineral or synthetic lubricating oils as well as fuels.
    Type: Grant
    Filed: December 30, 1988
    Date of Patent: December 10, 1991
    Assignee: Mobil Oil Corporation
    Inventors: Linda A. Benjamin, Andrew G. Horodysky, Derek A. Law, Nancy M. Page
  • Patent number: 5051525
    Abstract: N-acyl-2-amino acid amides containing phosphinic esters, process for their preparation, and N-acyl-2-amino acid nitriles as precursorsPhosphorus-containing N-acyl-2-amino acid amides of the general formula (I) ##STR1## where R.sup.1 is alkyl, optionally substituted by halogen or alkoxy, or is benzyl or phenyl, each of which is optionally substituted by alkyl, alkoxy, halogen, nitro or CF.sub.3, or is cycloalkyl, andR.sup.2 is H, or alkyl, optionally substituted by halogen or alkoxy, or is (CH.sub.2).sub.n -phenyl, optionally substituted in the phenyl ring by alkyl, alkoxy, halogen, nitro or CF.sub.3, where n=0, 1, 2 or 3,are valuable intermediates for the preparation of L-phosphinothricin by enzymatic cleavage, and can be obtained from the corresponding N-acyl-2-amino acid nitrile by selective acid hydrolysis.
    Type: Grant
    Filed: February 2, 1990
    Date of Patent: September 24, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Lothar Willms
  • Patent number: 5023325
    Abstract: A reactive dye of the formulaD--U--R).sub.nin which D is the radical of an anthraquinone, phthalocyanine, formazane, azomethine, dioxazine, phenazine, stilbene, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone or perylenetetracarbimide dye; U is --CO-- or --SO.sub.2 --; R is a radical of the formula ##STR1## Z is sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acetoxyethyl, .beta.-halogenoethyl or vinyl; alk is a polymethylene radical having 1 to 6 C atoms or its branched isomers; Y is hydrogen, chlorine, bromine, fluorine, hydroxyl, sulfato, C.sub.1 -C.sub.4 -alkanoyloxy, cyano, carboxyl, alkoxycarbonyl having 1 to 5 C atoms, carbamoyl or a radical --SO.sub.2 --Z in which Z is as defined above; V is hydrogen or C.sub.1 -C.sub.4 -alkyl which is unsubstituted or substituted by carboxyl, sulfo, C.sub.1 -C.sub.2 -alkoxy, halogen or hydroxyl;or a radical ##STR2## in which Z, alk and Y are as defined above; R.sub.1 is hydrogen or C.sub.1 -C.sub.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: June 11, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Athanassios Tzikas, Peter Aeschlimann
  • Patent number: 5004826
    Abstract: The compounds of the formula ##STR1## in which one of the groups R.sup.1, R.sup.2 and R.sup.3 represents hydrogen, C.sub.1-8 -alkyl, C.sub.3-6 -cycloalkyl, phenyl optionally substituted by halogeno, C.sub. 1-4 -alkyl, C.sub. -4 -alkoxy and/or trifluoromethyl, or C.sub.7-10 -phenylalkyl optionally substituted in the phenyl moiety by halogeno, C.sub.1-4 -alkyl C.sub.1-4 -alkoxy and/or trifluormethyl, and the other two are hydrogen, or salts thereof.These compounds have valuable pharmaceutical properties.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: April 2, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: John G. Dingwall, Josef Ehrenfreund, Roger G. Hall, James Jack
  • Patent number: 4992558
    Abstract: Novel disperse dyes particularly suitable for dyeing textile material made of polyester fibers, said dyes being of the formula ##STR1## wherein X is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen,Y is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkoxy,R is hydrogen, C.sub.1 -C.sub.12 alkyl, C.sub.2 -C.sub.12 alkenyl or phenyl, or Y and R, when taken together with the nitrogen atom and the two carbon atoms linking them, form a 5- or 6-membered ring,B is straight-chain or branched C.sub.2 -C.sub.6 alkylene,A is a radical of formula ##STR2## in which W is C.sub.1 -C.sub.9 alkyl, C.sub.5 -C.sub.7 cycloalkyl, phenyl, halogen or C.sub.1 -C.sub.4 alkoxy,n is 0, 1, 2, or 3,Q is hydrogen or C.sub.1 -C.sub.4 alkyl,V is halogen, andm is 0, 1, 2, 3 or 4.
    Type: Grant
    Filed: July 7, 1989
    Date of Patent: February 12, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Liechti, Antoine Clement
  • Patent number: 4939127
    Abstract: Antihypertensive phosphate derivatives having the following formula are described: ##STR1## wherein W is selected from the group consisting of methyl and phenyl optionally substituted with C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 alkoxy and phenyl; r, n, m and a are integers such that the expression r+(n+1)m+a is also an integer and has a value of 3 to 20; r is greater than or equal to 2; n is greater than or equal to 2; m is greater than or equal to zero and a is greater than or equal to zero; T is selected from the group consisting of hydrogen and ##STR2## wherein R.sub.1 is selected from the group consisting of hydrogen, C.sub.1 -C.sub.4 branched or straight chain alkyl, C.sub.1 -C.sub.4 branched or straight chain alkoxy and C.sub.1 -C.sub.4 branched or straight chain alkylamino; Q is a bivalent radical selected from --(CH.sub.2).sub.p -- and --(CHR).sub.p --, wherein p is an integer 2-12 and the moiety --(CHR.sub.p -- represents an alkylene chain which is substituted by one or more C.sub.1 -C.sub.
    Type: Grant
    Filed: September 15, 1987
    Date of Patent: July 3, 1990
    Assignee: American Cyanamid Company
    Inventor: Allan Wissner
  • Patent number: 4937369
    Abstract: A compound of formula: ##STR1## in which X.sup.1 is a reactive group that can react to form a covalent bond with a reactive group on the surface of a material to be rendered biocompatible, X.sup.2 is a group -0.sup..crclbar. or a precursor of such a group, n is 2, 3 or 4, Y is a group --N.sup..sym. R.sub.3 A.sup..crclbar. wherein each R, which may be the same or different, is a C.sub.1 -C.sub.4 alkyl group and A.sup..crclbar. is an anion present when X.sup.2 is an electrically neutral group or Y is ##STR2## wherein R.sup.1 together with X.sup.2 forms a direct bond between the nitrogen and the phosphorus atoms.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: June 26, 1990
    Assignee: Biocompatible, Ltd.
    Inventors: Dennis Chapman, Aziz A. Durrani
  • Patent number: 4933470
    Abstract: A method is described for producing vicinal diamines comprising the steps of converting a compound, possessing a leaving group on a carbon atom interposed between carbon atoms containing amino groups, to an aziridine-containing compound and reacting the latter compound with a nucleophile to form a vicinal diamine. The compound chosen for the rearrangement reaction may be selected from a wide range of compounds, including those with halide, heteroatom and aryl substituents. The amino groups may be blocked or unblocked. A variety of functional groups, including those which extend the carbon backbone, may be incorporated via opening of the aziridine-containing compound by addition of a selected nuclepohile. Aziridine-containing compositions and vicinal diamine compositions are disclosed. Functionalized vicinal diamines have numerous uses, including as intermediates for radionuclide-chelating ligands for use in the diagnosis and therapy of cancer.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: June 12, 1990
    Assignee: NeoRx Corporation
    Inventor: David S. Jones
  • Patent number: 4820632
    Abstract: The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R.sub.1 is a hydrogen atom or a lower alkyl or aryl radical, R.sub.2 is a hydrogen atom or a lower alkyl radical which can be substituted by hydroxyl, amino, carboxyl, lower alkoxycarbonyl, lower alkanoylamido, aryl lower alkyl or aryl or by a group of the structure: ##STR2## in which R.sub.5 and R.sub.6 have the meanings given hereinafter, R.sub.3 is a hydrogen or halogen atom or a carboxyl group, R.sub.4 and R'.sub.4, which can be the same or different, are hydrogen or halogen atoms, carboxyl groups or lower alkoxy radicals or lower alkyl radicals which are preferably in the m-position and R.sub.1 and R.sub.4 or R.sub.2 and R.sub.4 or R.sub.4 and R'.sub.4, when the two substituents are ortho to one another, can together form a saturated or unsaturated hydrocarbon chain containing 2 to 6 carbon atoms which can be substituted by hydroxyl or oxo groups, R.sub.
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: April 11, 1989
    Assignee: Boehringer Mannheim GmbH
    Inventors: Gunter Frey, Gerd Zimmermann
  • Patent number: 4794197
    Abstract: All-cis-1,3,5-Triamino-2,4,6-trihydroxycyclohexane derivatives corresponding to the general formula I ##STR1## wherein the symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are identical or different and represent hydrogen atoms, alkyl groups or --CO-alkyl groups wherein the alkyl in the alkyl or --CO-alkyl group has 1 to 18 carbon atoms and the alkyl and --CO-alkyl groups may contain, independently of one another, one or more identical or different functional groups, and at least one of the groups R.sub.1 to R.sub.6 is one of the above mentioned unsubstituted or substituted alkyl groups or --CO-alkyl groups, and their salts with pharmacologically conventionally used inorganic or organic acids and their quaternary ammonium salts, processes for their preparation and their use, and pharmaceutical preparations containing these compounds.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: December 27, 1988
    Inventors: Walter Schneider, Isidor Erni, Hans K. Hegetschweiler
  • Patent number: 4733000
    Abstract: Disclosure is optically active 1-amino-2-(hydroxyphenyl) ethylphosphonic acid and derivatives thereof which are useful as intermediates for the preparation of phosphorus-containing oligopeptides exhibiting hypotensive activity.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: March 22, 1988
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kunikatsu Shirahata, Masaji Kasai
  • Patent number: 4677217
    Abstract: Phenylsulfonamides of the formula ##STR1## in which X is a group ##STR2## Y is hydrogen, halogen, C.sub.1 -C.sub.5 -alkyl, trifluoromethyl, C.sub.2 -C.sub.5 -alkenyl, C.sub.2 -C.sub.5 -alkynyl, nitro, --COOR.sup.6 or --Q--R.sup.6, A is oxygen, sulfur, a direct bond, C.sub.1 -C.sub.5 -alkylene, C.sub.2 -C.sub.5 -alkenylene, C.sub.1 -C.sub.5 -halogenoalkylene or --NR.sup.7 --(CH.sub.2).sub.m --; --CH.sub.2 --NH--(CH.sub.2).sub.m ; --(CH.sub.2).sub.m --NR.sup.7 -- or --O--(CH.sub.2).sub.p --, --S--(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --O-- or --(CH.sub.2).sub.p --S--, n is zero or one, G is oxygen or sulfur, R.sup.4 is C.sub.1 -C.sub.5 -alkoxy, C.sub.1 -C.sub.5 -halogenoalkoxy, C.sub.1 -C.sub.5 -alkylthio, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.5 -halogenoalkyl, phenyl or hydroxyl, R.sup.5 is hydrogen, C.sub.1 -C.sub.5 -alkoxy, C.sub.1 -C.sub.5 -halogenoalkoxy, C.sub.1 -C.sub.5 -alkylthio, C.sub.1 -C.sub. 5 -alkyl or hydroxyl, R.sup.6 is hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.1 -C.sub.
    Type: Grant
    Filed: October 4, 1985
    Date of Patent: June 30, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Ludwig Maier, Willy Meyer, Konrad Oertle, Achim Roloff, Werner Topfl
  • Patent number: 4618358
    Abstract: The present invention relates to (2-nitro-5-aryloxyphenylamino)alkylphosphonic, -alkylphosphinic and -alkylphosphonous acid derivatives of the general formula I ##STR1## wherein X is halogen, CF.sub.3, NO.sub.2, CN, CONH.sub.2 or CSNH.sub.2,Y is nitrogen or --CH.dbd.,R is hydrogen, C.sub.1 -C.sub.4 alkyl or aralkyl containing 1 to 4 carbon atoms in the alkyl moiety,R.sub.1 is C.sub.1 -C.sub.4 alkyl,R.sub.2 is C.sub.1 -C.sub.4 alkyl, phenyl or --PO(OR.sub.6).sub.2,R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.4 is hydrogen, C.sub.1 -C.sub.4 alkyl or a cation,R.sub.5 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, hydroxyl or an --O-cation group,R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl,m is a value from 0 to 3,n is 0 or 1,p is a value from 0 to 3, andq is 0 or 1,with the proviso that R.sub.1 and R.sub.3 taken together may also be an unsubstituted or substituted C.sub.1 -C.sub.
    Type: Grant
    Filed: September 19, 1984
    Date of Patent: October 21, 1986
    Assignee: Ciba-Geigy Corporation
    Inventor: Ludwig Maier