Patents by Inventor Raj N. Misra

Raj N. Misra 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).

  • Publication number: 20020072609
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I: 1
    Type: Application
    Filed: February 5, 2002
    Publication date: June 13, 2002
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6392053
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I or a pharmaceutically acceptable salt thereof, wherein: R1, R2, R4, R5, R6, R8, R9, R12 and R13 are each independently hydrogen, alkyl, aryl or heteroaryl; R3, R7, R10 and R11 are each independently hydrogen, alkyl, aryl, heteroaryl, halogen, hydroxy or alkoxy; and X is CH or N, which are novel, potent inhibitors of cyclin dependent kinases (cdks). The present invention also concerns a new process for the preparation of formylarylacetates and formylarylacetic acids.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: May 21, 2002
    Assignee: Bristol-Myers Squibb Company
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Publication number: 20020002178
    Abstract: The present invention describes compounds of formula (I): 1
    Type: Application
    Filed: April 24, 2001
    Publication date: January 3, 2002
    Inventor: Raj N. Misra
  • Patent number: 6262096
    Abstract: Compounds of the formula and pharmaceutically acceptable salts thereof. R1 and R2 are independently hydrogen, fluorine or alkyl; R3 is aryl or heteroaryl R4 is alkyl, cycloalkyl, aryl, cycloalkylalkyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl; m is an integer of 0 to 2; and n is an integer of 1 to 3. The compounds of formula I are protein kinase inhibitors and are useful in the treatment and prevention of proliferative diseases, for example, cancer, inflammation and arthritis. They may also be useful in the treatment of neurodegenerative diseases such as Alzheimer's disease, cardiovascular diseases, viral diseases and fungal diseases.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: July 17, 2001
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kyoung S. Kim, S. David Kimball, Zhen-wei Cai, David B. Rawlins, Raj N. Misra, Michael A. Poss, Kevin R. Webster, John T. Hunt, Wen-Ching Han
  • Publication number: 20010006976
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-azacycloalkanoylaminothiazole compounds of formula I 1
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Mark E. Salvati, Joseph E. Sundeen, Hai-Yun Xiao, Rulin Zhao
  • Publication number: 20010004639
    Abstract: The present invention relates to new, efficient processes for the preparation of 5-(2-oxazolylalkylthio)-2-arylacetylaminothiazole compounds of formula I 1
    Type: Application
    Filed: December 22, 2000
    Publication date: June 21, 2001
    Inventors: Bang-Chi Chen, Kyoung S. Kim, S. David Kimball, Raj N. Misra, Joseph E. Sundeen, Rulin Zhao
  • Patent number: 6107305
    Abstract: Compounds of the formula ##STR1## and pharmaceutically acceptable salts thereof for use as inhibitors of cyclin dependent kinases, wherein:X is O, S(O).sub.m ;Y is alkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyl, heterocycloalkylalkyl;R.sub.1 is hydrogen or lower alkyl;R.sub.2 is alkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyl, heterocycloalkylalkyl, --O-alkyl, --O-aryl, --NR.sub.4 R.sub.5 ;R.sub.3 is hydrogen or lower alkyl;R.sub.4 is hydrogen, alkyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, cycloalkyl, cycloalkylalkyl, heterocycloalkyl, heterocycloalkylalkyl, --O-alkyl, --O-aryl;R.sub.5 is hydrogen, alkyl, aryl, alkylaryl, heteroaryl, alkylheteroaryl, cycloalkyl, alkylcycloalkyl, heterocycloalkyl, alkylheterocycloalkyl, --O-alkyl, --O-aryl; andm is 0, 1 or 2.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 22, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Raj N. Misra, S. David Kimball, David B. Rawlins, Kevin R. Webster, Isia Bursuker
  • Patent number: 6040321
    Abstract: Compounds of the formula ##STR1## and pharmaceuticaly acceptable salts thereof. As used in formula I, and throughout the specification, the symbols have the following meanings:R.sub.1 and R.sub.2 are independently hydrogen, fluorine or alkyl;R.sub.3 is aryl or heteroarylR.sub.4 is hydrogen, alkyl, cycloalkyl, aryl, cycloalkylalkyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl, heterocycloalkylalkyl; orCO-alkyl,CONH-alkyl,COO-alkyl,SO.sub.2 -alkyl,C(NCN)NH-alkyl,C(NNO.sub.2)NH-alkyl,C(NH)NH-alkyl,C(NH)NHCO-alkyl,C(NOR.sub.6)NH-alkyl,R.sub.5 is hydrogen or alkyl;R.sub.6 is hydrogen, alkyl, cycloalkyl, aryl, cycloalkylakyl, arylalkyl, heteroaryl, heteroarylalkyl, heterocycloalkyl or heterocycloalkylalkyl;m is an integer of 0 to 2; andn is an integer of 1 to 3.The compounds of formula I are protein kinase inhibitors and are useful in the treatment and prevention of proliferative diseases, for example, cancer, inflammation and arthritis.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: March 21, 2000
    Assignee: Bristol-Myers Squibb Company
    Inventors: Kyoung S. Kim, S. David Kimball, Zhen-wei Cai, David B. Rawlins, Raj N. Misra, Michael A. Poss, Kevin R. Webster, John T. Hunt, Wen-Ching Han
  • Patent number: 5827868
    Abstract: Thromboxane receptor antagonist activity is exhibited by compounds of the formula ##STR1## wherein: V is --(CH.sub.2).sub.m --, --O--, or ##STR2## but if V is --O--or ##STR3## R.sup.3 and R.sup.4 must complete an aromatic ring; W is --(CH.sub.2).sub.2 --, --CH.dbd.CH-- or phenylene;X is a single bond, --CH.dbd.CH--, --(CH.sub.2).sub.n --, or --O--(CH.sub.2).sub.n --; or X is branched alkylene or --O--branched alkylene wherein W is linked to Y through a chain n carbon atoms long;Y is --CO.sub.2 H, --CO.sub.2 alkyl, --CO.sub.2 alkali metal, --CH.sub.2 OH, --CONHSO.sub.2 R.sup.5, --CONHR.sup.6, or --CH.sub.2 -5-tetrazolyl;Z is O or NH;R.sup.3 and R.sup.4 are each independently hydrogen or alkyl or R.sup.3 and R.sup.4 together complete a ring optionally substituted through a ring carbon with a halo, lower alkyl, phenyl, halo (lower alkyl), halophenyl, oxo or hydroxyl group; and the remaining symbols are as defined in the specification.
    Type: Grant
    Filed: October 7, 1991
    Date of Patent: October 27, 1998
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, Jagabandhu Das, Steven E. Hall, Wen-Ching Han, Philip M. Sher, Philip D. Stein
  • Patent number: 5612323
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 18, 1997
    Assignee: Bristol-Myers Squibb Company
    Inventor: Raj N. Misra
  • Patent number: 5550248
    Abstract: Prostaglandin analogs useful in treating thrombotic and vasospastic disease having the structural formula ##STR1## wherein: C.sub.m H.sub.p is an alkylene chain wherein m is 0, 1, 2, or 3 and p=(2.times.m)-1, except that when m is 0, p is also 0;n is 0, 1, 2 or 3;R is CO.sub.2 R', CH.sub.2 OH, CONHSO.sub.2 R.sup.3, CONHR.sup.4, or --CH.sub.2 --5--tetrazolyl;R' is hydrogen, alkyl, or alkali metal;X is O or NH;Y is --O--, a single bond or vinylene, except that Y cannot be --O-- when n is 0;and the remaining symbols are as defined in the specification.
    Type: Grant
    Filed: November 29, 1990
    Date of Patent: August 27, 1996
    Assignee: E.R. Squibb & Sons, Inc.
    Inventor: Raj N. Misra
  • Patent number: 5371091
    Abstract: Sulfonamide thrombin inhibitors are provided which have the structure ##STR1## including all stereoisomers thereof, wherein n is 1, 2 or 3; m is 0, 1 or 2; R.sup.1 and R.sup.2 are independently H, lower alkyl, cycloalkyl, aryl, heteroaryl or heteroaryl-alkyl, or R.sup.1 and R.sup.2 can be taken together with the N atom to which they are attached to form a 4- to 8-membered ring; R.sup.3 is monocyclic heteroaryl; and R.sup.4 is alkyl, cycloalkyl, aryl, heteroaryl, quinolinyl or tetrahydroquinolinyl, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: December 6, 1994
    Assignee: Bristol-Myers Squibb Company
    Inventors: Raj N. Misra, Steven E. Hall
  • Patent number: 5332822
    Abstract: Sulfonamide thrombin inhibitors are provided which have the structure ##STR1## including all stereoisomers thereof, wherein X is S or --CH.sub.2 --; m is 0, 1 or 2 when X is --S-- or m is 0 when X is --CH.sub.2 --; n is 1, 2 or 3; R.sup.1 and R.sup.2 are independently H, lower alkyl, cyclo-alkyl, aryl, heteroaryl or heteroarylalkyl, or R.sup.1 and R.sup.2 can be taken together with the N atom to which they are attached to form a 5- to 8-membered ring which may optionally contain an additional N, O or S atom in the ring; R.sup.3 is heteroaryl; and R.sup.4 is alkyl, cycloalkyl, aryl, heteroaryl, quinolinyl or tetrahydroquinolinyl, and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: July 26, 1994
    Assignee: Bristol-Myers Squibb Company
    Inventor: Raj N. Misra
  • Patent number: 5290799
    Abstract: 7-Oxabicycloheptane substituted prostaglandin analogs useful in treating thrombotic and vasospastic disease have the structural formula ##STR1## wherein m is 1, 2 or 3; n is 1, 2, 3 or 4; Z is --(CH.sub.2).sub.2 --, --CH.dbd.CH-- or ##STR2## wherein Y is O, a single bond or vinyl, with the proviso that when n is O, if Z is ##STR3## then Y cannot be O, and when Z is --CH.dbd.CH--, n is 1, 2, 3 or 4; and when Y=vinyl, n=0; R is CO.sub.2 H, CO.sub.2 lower alkyl, CH.sub.2 OH, CO.sub.2 alkali metal, CONHSOR.sup.3, CONHR.sup.3a or --CH.sub.2 -5-tetrazolyl, X is O, S or NH; and where R.sup.1, R.sup.2, R.sup.3 and R.sup.3a are as defined herein.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: March 1, 1994
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, Philip M. Sher, Philip D. Stein, Steven E. Hall, David Floyd, Joel C. Barrish
  • Patent number: 5153327
    Abstract: 7-Oxabicycloheptane substituted prostaglandin analogs useful in treating thrombotic and vasospastic disease have the structural formula ##STR1## wherein m is 1, 2 or 3; n is 1, 2, 3 or 4; Z is --(CH.sub.2).sub.2 --, --CH.dbd.CH-- or ##STR2## wherein Y is O, a single bond or vinyl, with the proviso that when n is O, if Z is ##STR3## then Y cannot be O, and when Z is --CH.dbd.CH--, n is 1, 2, 3 or 4; and when Y=vinyl, n=; R is CO.sub.2 H, CO.sub.2 lower alkyl, CH.sub.2 OH, CO.sub.2 alkali metal, CONHSOR.sup.3 m CONHR.sup.3a or --CH.sub.2 -5-tetrazolyl, X is O, S or NH; and where R.sup.1, R.sup.2, R.sup.3 and R.sup.3a are as defined herein.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: October 6, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, Philip M. Sher, Philip D. Stein, Steven E. Hall, David Floyd, Joel C. Barrish
  • Patent number: 5135939
    Abstract: Prostaglandin analogs useful in treating thrombotic and vasospastic disease having the structural formula ##STR1## wherein: m is 1, 2, or 3;n is 0, 1, 2 or 3;R.sup.1 is hydrogen, alkyl, alkenyl, alkynyl, aralkyl, aryl cycloalkyl, cycloalkylalkyl, cycloheteroalkyl, cycloheteroalkylalkyl, heteroaryl or heteroarylalkyl, each of R.sup.1 being unsubstituted or optionally substituted with alkyl, aryl, cycloalkyl, or cycloalkylalkyl;R.sup.2 is CO.sub.2 R CONHSO.sub.2 R.sup.3, CONHR.sup.4 ;R is hydrogen, alkyl, or alkali metal;X is O or NH;Y is --O--, a single bond or vinylene, except that Y cannot be --O--when n is O;Z is --CH.dbd.CH--, --(CH.sub.2).sub.2 --, or ##STR2## and the remaining symbols are as defined in the specification.
    Type: Grant
    Filed: January 28, 1991
    Date of Patent: August 4, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Raj N. Misra
  • Patent number: 5126370
    Abstract: Prostaglandin analogs useful in treating thrombotic and vasospastic disease having the structural formula ##STR1## wherein: m is 1, 2 or 3:n is 1, 2 or 3, except that n is O when Y is vinylene;p is 1, 2 or 3;R is CO.sub.2 R', CH.sub.2 OH, CONHSO.sub.2 R.sup.3, CONHR.sup.4, or --CH.sub.2 -5-tetrazolyl;R' is hydrogen, alkyl, or alkali metal;Y is --O--, a single bond or vinylene, except that Y cannot be --O-- when n is 0;and the remaining symbols are as defined in the specification.
    Type: Grant
    Filed: December 24, 1990
    Date of Patent: June 30, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Raj N. Misra
  • Patent number: 5100889
    Abstract: 7-Oxabicycloheptane substituted prostaglandin analogs useful in treating thrombotic and vasopastic disease have the structural formula ##STR1## wherein m is 1, 2 or 3; n is 1, 2, 3 or 4; Z is --(CH.sub.2).sub.2 --, --CH.dbd.CH-- or ##STR2## wherein Y is O, a single bond or vinyl, with the proviso that when n is 0, if Z is ##STR3## then Y cannot be O, and Z is --CH.dbd.CH--, n is 1, 2, 3 or 4; and when Y=vinyl, n=0; R is CO.sub.2 H, CO.sub.2 lower alkyl, CH.sub.2 OH, CO.sub.2 alkali metal, CONHSOR.sup.3, CONHR.sup.3a or --CH.sub.2 --5-tetrazolyl, X is O, S or NH; and where R.sup.1, R.sup.2, R.sup.3 and R.sup.3a are as defined herein.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: March 31, 1992
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, Philip M. Sher, Philip D. Stein, Steven E. Hall, David Floyd, Joel C. Barrish
  • Patent number: 4975461
    Abstract: p-Aminophenols are provided having the structure ##STR1## wherein m is 0, 1 or 2; n is 0, 1, 2 or 3; R.sup.1 and R.sup.2 may be the same or different and are H, hydroxy or alkoxy; R.sup.3 is H, lower alkyl, alkanoyl or aroyl and R.sup.4 is H, lower alkyl or alkanoyl, and including acid-addition salts thereof.These compounds are useful as inhibitors of leukotriene production and as such are useful as antiallergy, anti-inflammatory and anti-psoriatic agents.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: December 4, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventor: Raj N. Misra
  • Patent number: 4965279
    Abstract: Novel cyclopropyl aza prostaglandin analogs are disclosed having the formula ##STR1## wherein A can be carbonyl, sulfonyl or a single bond. These compounds are useful, for example, as thromboxane antagonists.
    Type: Grant
    Filed: November 18, 1988
    Date of Patent: October 23, 1990
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Raj N. Misra, David M. Floyd, Steven E. Hall