Patents by Inventor Anumula Reddy

Anumula Reddy 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).

  • Process for preparing crystalline form A of valdecoxib
    Publication number: 20050272787
    Abstract: Valdecoxib Form A is prepared by a process comprising adding aqueous ammonia to a solution of 4-(5-methyl-3-phenyl-4-isoxazolyl)benzenesulfonyl chloride in a halogenated hydrocarbon or water.
    Type: Application
    Filed: May 19, 2005
    Publication date: December 8, 2005
    Inventors: Eswaraiah Sajja, Anumula Reddy, Aalla Sampath, Gilla Goverdhan
  • Method for preparing diaryl-substituted isoxazole compounds
    Publication number: 20050182113
    Abstract: The present invention relates to a process for preparing diaryl-substituted isoxazole using compounds of Formula (V) and Formula (VII): where Y is and to processes for preparing valdecoxib and parecoxib.
    Type: Application
    Filed: December 29, 2004
    Publication date: August 18, 2005
    Inventors: Venkataraman Sundaram, Anuradha Bhimireddy, Sajja Eswaraiah, Gilla Goverdhan, Koilkonda Purandhar, Surasani Rajendra, Nadimpally Raju, Anumula Reddy, Lekkala Reddy, Emani Reddy, Padi Reddy, Alla Sampath, Vecha Sravanthi
  • Process for the recovery of S -(+)-methyl- (2-chlorophenyl)- (6,7-dihydro- 4H-thieno [3,2-c] pyrid-5-yl) acetate hydrogen sulfate (clopidogrel bisulfate) from its (R) and mixture of (R) and (S)- isomers
    Publication number: 20050059696
    Abstract: A process for the recovery of compound of formula (I) where X represents hydrogen, fluoro, chloro, bromo or iodo atom, preferably 2-chloro which comprising the steps of f. preparing compound (?) or (±)-(2-chloro phenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetate methyl ester hydrogen sulfate from its corresponding camphorsulfonic acid salt compound. g. transforming the obtained compound of step (a), into the compound of (2-chlorophenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetic acid. h. converting the compound of step (b) into racemic compound (±)-(2-chloro phenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetate methyl ester hydrogen sulfate. i. resolving the obtained racemic compound of step (c), into the optically active (+)-(2-chloro phenyl)-(6,7-dihydro-4H-thieno[3,2-c]pyrid-5-yl)acetate methyl ester camphor sulfonic acid salt. j. further transforming the optically active (+) form compound of step (d) into their pharmaceutically acceptable salts.
    Type: Application
    Filed: May 10, 2004
    Publication date: March 17, 2005
    Inventors: Manne Reddy, Sajja Eswaraiah, Anumula Reddy, Alla Sampath