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Inventor:
Williams; Haydn W. R.
Address:
Dollard Des Ormeaux, CA
No. of patents:
25
Patents:












Patent Number Title Of Patent Date Issued
5118858 Triphenyl methanethiol-35S June 2, 1992
Disclosed herein are /.sup.35 S/-labelled compound of the formula (I):and processes therefor. This Compound (I) is useful as an intermediate for the introduction of sulfur isotope into a variety of compounds. For example, it is useful in the introduction of sulfur isotope into important
4962203 2-substituted quinolines useful as leukotriene antagonists October 9, 1990
Compounds having the formula: ##STR1## are selective antagonists of leukotrienes of D.sub.4. These compounds are useful as anti-asthmatic, anti-allergic, anti-inflammatory, and cytoprotective agents.
4906658 Fluoro-sulfones March 6, 1990
Compounds of Formula I ##STR1## the pharmaceutically acceptable salts, and the gamma-lactone form thereof are described. They are antagonists of leukotrienes and SRS-A.
4537902 4-Substituted-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid oxidase August 27, 1985
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
4453005 Process for preparing substituted phenylalkenoic acids June 5, 1984
Substituted phenylalkenoic acids and esters of the formula: ##STR1## having useful pharmaceutical activity and processes for their preparation are disclosed.
4448786 4-Naphthyl and substituted naphthyl-3-hydroxy-3-pyrroline-2,5-diones and their use as inhibitors May 15, 1984
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate kidney stone formation. A novel process for their preparation is also disclosed.
4435579 Resolution of substituted dibenzo[b,f]thiepin-3-carboxylic acid-5-oxides with ephedrine March 6, 1984
The present invention is concerned with an improved process for the production of highly active optical isomers of (-) 7 or 8 fluorodibenzo[b,f]thiepin-3-carboxylic acid-5-oxide having the structural formula ##STR1## in which the fluoro substituent replaces a hydrogen in the 7 or
4432992 4-[5(and 4)-Substituted-2-thienyl]-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid o February 21, 1984
Novel 4-[5(and 4)-substituted-2-thienyl]-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate kidney stone formation. A novel process for their preparation is also disclosed.
4431660 (4'-Biphenylyloxy and-thio-oxy)-3-hydroxy-3-pyrroline-2,5-diones and a method of treating calciu February 14, 1984
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
4431652 4-Hydroxy-5-substituted-3(2H)-isothiazolone-1,1-dioxide derivatives useful in treating urinary t February 14, 1984
4-Hydroxy-5-substituted-3(2H)-isothiazolone-1,1-dioxide derivatives of the formula: ##STR1## where X and Y are independently selected from the group consisting of hydrogen, halogen, and C.sub.1-6 alkyl; provided that positions 2 and 6 of the substituted phenyl moiety may not be s
4428956 4-Hydroxy-5-substituted-3-(2H)-isothiazolone-1,1-dioxide derivatives useful in treating urinary January 31, 1984
4-Hydroxy-5-substituted-3(2H)-isothiazolone-1,1-dioxide derivatives of the formula: ##STR1## where X and Y are independently selected from the group consisting of hydrogen, halogen, and C.sub.1-6 alkyl; provided that positions 2 and 6 of the substituted phenyl moiety may not be s
4424355 Resolution of substituted dibenzo[b,f]thiepin-3-carboxylic acid-5-oxides with brucine or ephedri January 3, 1984
The present invention is concerned with an improved process for the production of highly active optical isomers of (-) 7 or 8 fluorodibenzo[b,f]thiepin-3-carboxylic acid-5-oxide having the structural formula ##STR1## in which the fluoro substituent replaces a hydrogen in the 7 or
4423063 2,4-Dioxo-4-substituted-1-butaoic acid derivatives useful in treating urinary track calcium oxal December 27, 1983
2,4-Dioxo-4-substituted-1-butanoic acid derivatives of the formula: ##STR1## where R is hydrogen or C.sub.1-4 alkyl; andL is a lipophilic group consisting essentially of ##STR2## where R' is (a) hydrogen; (b) C.sub.1-3 alkyl; (c) benzyl; (d) pyridyl C.sub.1-3 alkyl or (e) (3,4-d
4377588 4-(Substituted thiazolyl)-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid oxidase March 22, 1983
Novel 4-(substituted thiazolyl)-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
4349561 4-Substituted-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid oxidase September 14, 1982
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate kidney stone formation. A novel process for their preparation is also disclosed.
4342776 4-Substituted-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid oxidase August 3, 1982
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate kidney stone formation. A novel process for their preparation is also disclosed.
4337258 2,4-Dioxo-4-substituted-1-butanoic acid derivatives useful in treating urinary tract calcium oxa June 29, 1982
2,4-Dioxo-4-substituted-1-butanoic acid derivatives of the formula: ##STR1## where R is hydrogen or C.sub.1-4 alkyl; andL is a lipophilic group consisting essentially of(1) ##STR2## where R' is (a) hydrogen; (b) C.sub.1-3 alkyl; (c) benzyl; (d) pyridyl C.sub.1-3 alkyl; or (e) (3
4336397 2,4-Dioxo-4-substituted-1-butanoic acid derivatives useful in treating urinary tract calcium oxa June 22, 1982
2,4-Dioxo-4-substituted-1-butanoic acid derivatives of the formula: ##STR1## where R is hydrogen or C.sub.1-4 alkyl; andL is a lipophilic group consisting essentially of: ##STR2## where R.sup.1 and R.sup.2 are each independently selected from the group consisting of (a) hydrogen;
4298743 4-(Substituted phenyl thiazolyl)-3-hydroxy-3-pyrroline-2,5-diones November 3, 1981
Novel 4-(substituted thiazolyl)-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
4256758 4-Substituted-3-hydroxy-3-pyrroline-2,5-dione inhibitors of glycolic acid oxidase March 17, 1981
Novel 4-substituted-3-hydroxy-3-pyrroline-2,5-diones are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate renal lithiasis.
4249021 Indanacetic acid compounds February 3, 1981
Substituted 1-oxo-2,2-disubstituted-5-indanacetic acids and their salts, esters and amides are disclosed. The products display a dual pharmaceutical utility in that they exhibit diuretic, saluretic and uricosuric activity.
4233452 Derivatives of glycolic and glyoxylic acid as inhibitors of glycolic acid oxidase November 11, 1980
Novel derivatives of glycolic and glyoxylic acid are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate urolithiasis (calcium oxalate kidney and bladder stone disease).
4207329 Derivatives of glycolic and glyoxylic acid as inhibitors of glycolic acid oxidase June 10, 1980
Novel derivatives of glycolic and glyoxylic acid are disclosed which inhibit glycolic acid oxidase and thus are useful in the treatment and prevention of calcium oxalate urolithiasis (calcium oxalate kidney and bladder stone disease).
4178386 Inhibitors of glycolic acid oxidase December 11, 1979
2-Hydroxy-3-butynoic acid is disclosed which inhibits glycolic acid oxidase and thus is useful in the treatment and prevention of calcium oxalate urolithiasis (calcium oxylate kidney and bladder stone disease).
3944560 3-Hydroxy-3-(1,2,5-thiadiazolyloxyalkanol)-3,4-dihydro-2H-1,5-ben zodioxepin products March 16, 1976
3-Hydroxy-3-(substituted-aminoalkyl-3,4-dihydro-2H-1,5-benzodioxepin products are described that exhibit .sym.-advenergic stimulating properties and are therefore suitable for use as bronchodilating agents. The products are prepared essentially by four principal routes from 3-oxo-3,4










 
 
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