Patents by Inventor Anil K. Saksena

Anil K. Saksena 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: 5714490
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two amino acid ester groups (e.g., an amino acid ester group convertible in vivo into a hydroxy group) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: February 3, 1998
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5710154
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two groups convertible in vivo into hydroxy moieties, (e.g., a polyether ester, amino acid ester or phosphate ester) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: January 20, 1998
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5703236
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two hydroxy moieties, an ether ester (e.g., a polyetherester or phosphate ester) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 30, 1997
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5703079
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two polyetyher ester groups (e.g., a polyether ester convertible in vivo into a hydroxy group) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 30, 1997
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5698557
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two hydroxy moieties, an ether or ester thereof (e.g., a polyether ester, heterocyclic ester amino acid ester or phosphate ester) thereof and the carbon with the asterisk (*) has the R or S absolute configuration or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: December 16, 1997
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike
  • Patent number: 5693626
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two phosphate ester groups (e.g., a phosphate ester convertible in vivo into a hydroxy group) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 2, 1997
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5661151
    Abstract: A compound represented by the formula I ##STR1## wherein X is independently both F or both Cl or one X is independently F and the other is independently Cl; R.sub.1 is a straight or branched chain (C.sub.3 to C.sub.8) alkyl group substituted by one or two hydroxy moieties, an ether or ester thereof (e.g., a polyether ester amino acid ester or phosphate ester) thereof or a pharmaceutically acceptable salt thereof and pharmaceutical compositions thereof useful for treating and/or preventing fungal infections are disclosed.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: August 26, 1997
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Raymond G. Lovey, Russell E. Pike, Haiyan Wang, Yi-Tsung Liu, Ashit K. Ganguly, Frank Bennett
  • Patent number: 5652226
    Abstract: The compound of the formula I ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, and R.sup.8 are as defined herein, are described. These compounds are antibacterial agents.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: July 29, 1997
    Assignee: Schering Corporation
    Inventors: Viyyoor M. Girijavallabhan, Anil K. Saksena, Frank Bennett, Edwin Jao, Naginbhai M. Patel, Ashit Ganguly
  • Patent number: 5618793
    Abstract: Compounds of the formula ##STR1## wherein R.sub.3, R.sub.4, J, K, Z, and Het are as set forth herein are described.The compounds of formula I are useful as agents in the treatment of fungal infections.
    Type: Grant
    Filed: August 1, 1995
    Date of Patent: April 8, 1997
    Assignee: Schering Corporation
    Inventors: Alan B. Cooper, Anil K. Saksena, Raymond Lovey, Viyyoor Girijavallabhan, Ashit Ganguly
  • Patent number: 5559133
    Abstract: A compound represented by formula I, Ar.sub.1 --O--M--O--Ar.sub.2, wherein Ar.sub.1 and Ar.sub.2 are independently substituted phenyl or substituted pyridinyl, the substituents on said phenyl or pyridinyl being independently selected from one, two or three of (C.sub.1 -C.sub.10) alkyl, (C.sub.1 -C.sub.10) alkoxy, halogen, carbamyl, (C.sub.1 -C.sub.10) alkoxycarbonyl, oxazoyl, and (C.sub.1 -C.sub.10) alkyl substituted by halogen, (C.sub.1 -C.sub.10) alkoxy, hydroxy, or (C.sub.1 -C.sub.10) alkoxycarbonyl; ##STR1## O is oxygen; R' is (C.sub.1 -C.sub.3 alkyl or H; A is oxygen or sulfur; Q is selected from hydrogen, halogen, nitro, (C.sub.1 -C.sub.6) alkyl, (C.sub.1 C.sub.6) perhaloalkyl, (C.sub.1 -C.sub.6) alkylthio (C.sub.1 -C.sub.
    Type: Grant
    Filed: December 16, 1993
    Date of Patent: September 24, 1996
    Assignee: Schering Corporation
    Inventors: Viyyoor M. Girijavallabhan, Ashit K. Ganguly, Richard W. Versace, Anil K. Saksena, Patrick A. Pinto
  • Patent number: 5461055
    Abstract: Compounds of the formula ##STR1## wherein R.sub.3, R.sub.4, J, K, Z, and Het are as set forth herein are described.The compounds of formula I are useful as agents in the treatment of fungal infections.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: October 24, 1995
    Assignee: Schering Corporation
    Inventors: Alan B. Cooper, Anil K. Saksena, Raymond Lovey, Viyyoor Girijavallabhan, Ashit Ganguly
  • Patent number: 5403937
    Abstract: Disclosed is a process for preparing chiral compounds of the formula (I) ##STR1## wherein: X.sup.1 and X.sup.2 are independently F or Cl; and E is --SO.sub.2 R.sup.2, wherein R.sup.2 is C.sub.1 -C.sub.6 alkyl, --C.sub.6 H.sub.4 CH.sub.3 or --CF.sub.3 ; its enantiomer and racemates thereof, useful in the synthesis of tetrahydrofuran azole antifungals. Novel compounds of the formula ##STR2## wherein: X.sup.1 and X.sup.2 are independently F or Cl; B represents --C(O)Q* or --CH.sub.2 OR"; Q* represents a chiral auxiliary group; R" represents a hydroxy protecting group selected from --CH.sub.2 C.sub.6 H.sub.5, or --C(O)R.sup.1, wherein R.sup.1 is C.sub.1 -C.sub.6 alkyl; and A represents Cl, Br, I or triazolyl; are also disclosed.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: April 4, 1995
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Russell E. Pike, Haiyan Wang, Raymond G. Lovey, Yi-Tsung Liu, Ashit K. Ganguly, William B. Morgan, Aleksey Zaks
  • Patent number: 5371284
    Abstract: Phenyl acetylenic acetals and thioacetals and their use in the treatment of allergy, asthma, inflammation, arthritis, hyperproliferative skin disease, psoriasis or contact dermatitis are disclosed. Also disclosed are intermediates useful for producing said phenyl acetylenic acetals and thioacetals.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: December 6, 1994
    Assignee: Schering Corporation
    Inventors: Richard J. Friary, Michael J. Green, Anil K. Saksena, Vera A. Seidl
  • Patent number: 5346898
    Abstract: Compounds of the formula ##STR1## wherein R.sub.3, R.sub.4, J, K, Z, and Het are as set forth herein are described.The compounds of formula I are useful as agents in the treatment of fungal infections.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: September 13, 1994
    Assignee: Schering Corporation
    Inventors: Alan B. Cooper, Anil K. Saksena, Raymond Lovey, Viyyoor Girijavallabhan, Ashit Ganguly
  • Patent number: 5238926
    Abstract: Compounds of the formula ##STR1## or pharmaceutically acceptable salts thereof wherein R.sub.3, R.sub.4, R.sub.7, J, K, Z and Het are as set forth herein are described.The compounds of formula I are useful as agents in the treatment of fungal infections.
    Type: Grant
    Filed: August 7, 1992
    Date of Patent: August 24, 1993
    Assignee: Schering Corporation
    Inventors: Alan B. Cooper, Anil K. Saksena, Raymond Lovey, Viyyoor Girijavallabhan, Ashit Ganguly
  • Patent number: 5236900
    Abstract: Compounds of the formula ##STR1## wherein R.sub.9, J, K, Z and Het are as set forth herein as described. The compounds of formula I are useful as agents in the treatment of fungal infections.
    Type: Grant
    Filed: August 20, 1991
    Date of Patent: August 17, 1993
    Assignee: Schering Corporation
    Inventors: Alan B. Cooper, Anil K. Saksena, Raymond Lovey, Viyyoor Girijavallabhan, Ashit Ganguly
  • Patent number: 5039676
    Abstract: This invention relates to tri- and tetra-substituted-oxetanes, e.g. (.+-.)-cis- and (.+-.)-trans-2-[(4-(4-isopropylpiperazin-1-yl)phenoxy)methyl]-4-(2,4-dihal ophenyl)-4-[1H-1,2,4-triazol-1-yl)-methyl]oxetane and tri- and tetra-substituted-tetrahydrofurans, e.g. (.+-.)-cis- and (.+-.)-trans-1-[4-[[2-(2,4-dihalophenyl)tetrahydro-2-[(1H-azol-1-yl)methyl ]-5-furanylmethoxy]phenyl]-4-yl-1-substituted piperazine-3-one and related derivatives which exhibit antifungal and antiallergy activities, pharmaceutical composition thereof, methods of their use in treating or preventing susceptible fungal infections and allergic reactions in a host including warm-blooded animals such as humans.
    Type: Grant
    Filed: May 11, 1990
    Date of Patent: August 13, 1991
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Ashit K. Ganguly, Dinanath F. Rane
  • Patent number: 5015739
    Abstract: Cyclopentyl purine derivatives, novel intermediate thereof and processes for their preparation are disclosed.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: May 14, 1991
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Ashit K. Ganguly
  • Patent number: 4999428
    Abstract: Novel process for preparing cyclopentyl purine derivatives is disclosed.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: March 12, 1991
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Viyyoor M. Girijavallabhan, Ashit K. Ganguly
  • Patent number: 4988716
    Abstract: Novel compounds and compositions which inhibit SRS-A in mammals are disclosed. Methods for preparing said compounds and compositions and methods for their use for treating allergic reactions, inflammation and for reducing the severity of myocardial infarction resulting from heart attack are disclosed.Useful intermediates for preparing said compounds are also disclosed.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: January 29, 1991
    Assignee: Schering Corporation
    Inventors: Anil K. Saksena, Jesse K. Wong, Pietro Mangiaracina