Patents by Inventor Faizulla G. Kathawala

Faizulla G. Kathawala has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5354772
    Abstract: Compounds of the formula ##STR1## wherein one of R and R.sub.o is ##STR2## and the other is primary or secondary C.sub.1-6 alkyl not containing an asymmetric carbon atom, C.sub.3-6 cycloalkyl or phenyl-(CH.sub.2).sub.m --,whereinR.sub.4 is hydrogen, C.sub.1-3 alkyl, n-butyl, i-butyl, t-butyl, C.sub.1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy,R.sub.5 is hydrogen, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy,R.sub.5a is hydrogen, C.sub.1-2 alkyl, C.sub.1-2 alkoxy, fluoro or chloro, andm is 1, 2 or 3, with the provisos that both R.sub.5 and R.sub.5a must be hydrogen when R.sub.4 is hydrogen, R.sub.5a must be hydrogen when R.sub.5 is hydrogen, not more than one of R.sub.4 and R.sub.5 is trifluoromethyl, not more than one of R.sub.4 and R.sub.5 is phenoxy, and not more than one of R.sub.4 and R.sub.5 is benzyloxy,R.sub.2 is hydrogen, C.sub.1-3 alkyl, n-butyl, i-butyl, t-butyl, C.sub.3-6 cycloalkyl, C.sub.
    Type: Grant
    Filed: November 24, 1993
    Date of Patent: October 11, 1994
    Assignee: Sandoz Pharm. Corp.
    Inventor: Faizulla G. Kathawala
  • Patent number: 5001255
    Abstract: Compounds of the formula ##STR1## the use thereof for inhibiting cholesterol biosynthesis and lowering the blood cholesterol level and, therefore, in the treatment of hyperlipoproteinemia and atherosclerosis, pharmaceutical compositions comprising such compounds and processes for and intermediates in the synthesis of such compounds.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: March 19, 1991
    Assignee: Sandoz Pharm. Corp.
    Inventors: Faizulla G. Kathawala, Sompong Wattanasin
  • Patent number: 4939159
    Abstract: Compounds of the formula I: ##STR1## wherein X is the residue of an unsubstituted 6-membered aromatic ring having 3 carbon atoms and one nitrogen atom;R.sup.1 is C.sub.1-6 primary alkyl (free of asymmetric carbon atoms), or isopropyl;R.sup.2 is substituted or unsubstituted phenyl, primary or secondary C.sub.1-6 alkyl (free of asymmetric carbons),C.sub.3-6 cycloalkyl or phenalkyl as defined in the Specification ##STR2## in which R.sup.8 is hydrogen, R.sup.9 or M, whereinR.sup.9 is a physiologically acceptable and hydrolyzable ester group, andM is a pharmaceutically acceptable cation;are obtained by multi-step processes and are useful as cholesterol biosynthesis inhibitors.
    Type: Grant
    Filed: March 8, 1989
    Date of Patent: July 3, 1990
    Assignee: Sandoz Pharm. Corp.
    Inventors: Paul L. Anderson, Faizulla G. Kathawala, Nicholas A. Paolella, Sompong Wattanasin
  • Patent number: 4822799
    Abstract: Compounds of the formula ##STR1## and processes for and intermediates in the synthesis thereof, pharmaceutical compositions comprising such a compound and the use of such compounds for inhibiting cholesterol biosynthesis and lowering the blood cholesterol level and, therefore, in the treatment of hyperlipoproteinemia and atherosclerosis.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: April 18, 1989
    Assignee: Sandoz Pharm. Corp.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4739073
    Abstract: Compounds of the formula ##STR1## wherein one of R and R.sub.o is ##STR2## and the other is primary or secondary C.sub.1-6 alkyl not containing an asymmetric carbon atom, C.sub.3-6 cycloalkyl or phenyl(CH.sub.2).sub.m --, whereinR.sub.4 is hydrogen, C.sub.1-3 alkyl, n-butyl, i-butyl, t-butyl, C.sub.1-3 alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy,R.sub.5 is hydrogen, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy,R.sub.5a is hydrogen, C.sub.1-2 alkyl, C.sub.1-2 alkoxy, fluoro or chloro, andm is 1, 2 or 3, with the provisos that both R.sub.5 and R.sub.5a must be hydrogen when R.sub.4 is hydrogen, R.sub.5a must be hydrogen when R.sub.5 is hydrogen, not more than one of R.sub.4 and R.sub.5 is trifluoromethyl, not more than one of R.sub.4 and R.sub.5 is phenoxy, and not more than one of R.sub.4 and R.sub.5 is benzyloxy,R.sub.2 is hydrogen, C.sub.1-3 alkyl, n-butyl, i-butyl, t-butyl, C.sub.3-6 cycloalkyl, C.sub.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: April 19, 1988
    Assignee: Sandoz Pharmaceuticals Corp.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4456619
    Abstract: The compounds are secondary amides of the formulaA--C.tbd.CO--NH--BwhereinA is alkyl, a mono- or poly-ethylenically unsaturated acyclic hydrocarbon chain, or a hydrocarbon chain having from 1 to 4 cyclopropanyl units thereon; andB is a radical which may be of the phenyl, benzyl, phenylalkyl, benzocycloalkyl or indol- type, e.g., N-[1-phenyl-2-(p-methylphenyl)-ethyl]-oct-2-ynoylamide.The compounds are useful as pharmaceutical agents.
    Type: Grant
    Filed: September 17, 1979
    Date of Patent: June 26, 1984
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4448785
    Abstract: Ethylenically unsaturated fatty acid amides of tryptophan derivatives e.g. .alpha.-[1-oxo-9-octadecenylamino)]-1H-indole-3-propanoic acid, ethyl ester, are useful as pharmaceutical agents and are obtainable by reacting a mixed anhydride of a long chain unsaturated carboxylic acid with an appropriate tryptophan ester.
    Type: Grant
    Filed: June 24, 1982
    Date of Patent: May 15, 1984
    Assignee: Sandoz, Inc.
    Inventors: Faizulla G. Kathawala, John G. Heider
  • Patent number: 4416876
    Abstract: Compounds of the formula ##STR1## in which R.sup.1 is a mono-silicon-containing hydrocarbyl radical having up to 35 carbon atoms;each of R.sup.2 and R.sup.3 is, independently, a hydrogen atom or lower alkyl having from 1 to 3 carbon atoms;n is 0 or 1; andM is a hydrogen atom, an equivalent of a cation which forms a non-toxic, pharmaceutically acceptable salt, or a non-toxic pharmaceutically acceptable monovalent radical which is hydrolyzable or saponifiable to an alkali metal cation, eg sodium 4-(4,4-dimethyl-4-sila-tetradecylamino)-benzoate, are useful as pharmaceutical agents.
    Type: Grant
    Filed: May 19, 1982
    Date of Patent: November 22, 1983
    Assignee: Sandoz, Inc.
    Inventors: Sandor Barcza, Faizulla G. Kathawala
  • Patent number: 4384124
    Abstract: Cyclopropanyl-group-bearing-amides, eg N-[1-(benzyl)-2-(phenyl)ethyl]-cis-2-octyl-cyclopropanoctanamide and N-(.alpha.-methyl-benzyl)-(cis)-2-octyl-cyclopropanoctanamide, are useful as pharmaceutical agents and are obtainable, eg by reacting a mixed anhydride of a cyclopropanyl-group bearing-long chain carboxylic acid with an appropriate amino compound.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: May 17, 1983
    Assignee: Sandoz, Inc.
    Inventors: Faizulla G. Kathawala, John G. Heider
  • Patent number: 4320135
    Abstract: The compounds are free hydantoin derivatives of the formula: ##STR1## wherein X is a divalent radical consisting of from 2 to 5 linked units; one unit being --O--, and from one to 4 hydrocarbon units, independently, having the structure(a) --CH.sub.2 -- or (b) --C(R).sub.2 --in which R is alkyl having from 1 to 6 carbon atoms and being free of branching on the .alpha.-carbon atoms; provided that no more than 2 units are of type b; or a pharmaceutically acceptable salt form thereof with a suitable cation; e.g. 7-oxa-1,3-diazaspiro[4.4]nonane-2,4-dione, and are useful as pharmaceuticals.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: March 16, 1982
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4287355
    Abstract: Carbalkoxy-phenyl (or tolyl)-dialkyl-or alkyl-phenyl-sulfonium salts, e.g. p-(.alpha.-carbethoxy) tolyl-n-octadecyl-phenyl sulfonium tetrafluoroborate, are useful as pharmaceuticals. The compounds are obtainable by reaction of a carbalkoxy-phenyl (or-tolyl)-dialkyl-or-alkyl-phenyl-sulfide with an alkylhalide in the presence of a metal salt, e.g. silver tetrafluoroborate.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: September 1, 1981
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4251521
    Abstract: Alkyl diaryl sulfonium salts, e.g., cyclopropyl diphenylsulfonium tetrafluoroborate, are useful as hypoglycemic agents.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: February 17, 1981
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4248893
    Abstract: Cyclopropanyl-group-bearing-amides, eg N-[1-(benzyl)-2-(phenyl)ethyl]-cis-2-octyl-cyclopropanoctanamide and N-(.alpha.-methyl-benzyl)-(cis)-2-octyl-cyclopropanoctanamide, are useful as pharmaceutical agents and are obtainable, eg by reacting a mixed anhydride of a cyclopropanyl-group bearing-long chain carboxylic acid with an appropriate amino compound.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: February 3, 1981
    Assignee: Sandoz, Inc.
    Inventors: Faizulla G. Kathawala, John G. Heider
  • Patent number: 4246259
    Abstract: Higher alkyl diaryl sulfonium salts, e.g., octadecyldiphenylsulfonium tetrafluoroborate, are useful as anti-obesity agents.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: January 20, 1981
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4233292
    Abstract: Cyclopropyl alkyl arylsulfonium salts, e.g., cyclopropyl n-propyl phenylsulfonium tetrafluoroborate, are useful as pharmaceutical agents.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: November 11, 1980
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4229463
    Abstract: Mono- or poly-unsaturated fatty acid hydrazides, e.g. cis,-9-octadecenoic acid, 2-(o-methylphenyl)-hydrazide are useful as pharmaceutical agents and are obtainable by reacting a derivative, e.g. mixed anhydride, of a long chain unsaturated carboxylic acid with an appropriate hydrazine compound.
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: October 21, 1980
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4201785
    Abstract: Cyclopropanyl-group-bearing-hydrazides, e.g. cis-2-octyl-cyclopropanoctanoic acid, 2-(o-methylphenyl)-hydrazide, are useful as pharmaceutical agents and are obtainable by reacting a derivative, e.g. mixed anhydride, of a cyclopropanyl-group bearing-long chain carboxylic acid with an appropriate hydrazine.
    Type: Grant
    Filed: April 4, 1979
    Date of Patent: May 6, 1980
    Assignee: Sandoz Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4194002
    Abstract: Long chain fatty acid amides of styryl hexahydroindolinols in which the amido portions have ethyleneically unsaturated positions or cyclopropanyl rings, eg 1-(1-oxo-9-cis-octadecenyl)-(3aRS, 4RS, 7aRS)-4-(Z)-(3,4-dimethoxy)-styryl-hexahydro-4-indolinol, are useful as cholesterol ester-reducing agents and are obtainable by reacting corresponding long chain carboxylic acids (or derivatives thereof) with appropriate 4-styryl-4-hexahydroindolinols.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: March 18, 1980
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4185118
    Abstract: Unsaturated fatty acid amides of benzocycloalkylamines, eg. N-(1-indanyl)-cis,cis-9,12-octadecadienylamide, are useful as pharmaceutical agents and are obtainable by reacting a mixed anhydride of a long chain unsaturated carboxylic acid with an appropriate benzocycloalkylamine.
    Type: Grant
    Filed: January 12, 1979
    Date of Patent: January 22, 1980
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala
  • Patent number: 4175138
    Abstract: Hypolipidemic agents of the formula: ##STR1## wherein X is C.dbd.O or CHOH,R.degree. is branched lower alkyl,R is hydrogen, alkyl, or halo,n is 1 or 2, andR' and R" are hydrogen, halo, alkyl or alkoxy, e.g., 4-phenoxy pivalophenone.
    Type: Grant
    Filed: January 30, 1978
    Date of Patent: November 20, 1979
    Assignee: Sandoz, Inc.
    Inventor: Faizulla G. Kathawala