Patents Represented by Attorney Balarm Gupta

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  • Preparation of (11.beta.,16.beta.)-21-(acetyloxy)-11-hydroxy-2'-methyl-5'H-pregna-1,4-d ieno[17,16-d]oxazole-3,20-dione
    Patent number: 6103895
    Abstract: A process for preparing the compound (11.beta.,16.beta.)-21-(acetyloxy)-11-hydroxy-2'-methyl-5'H-pregna-1,4-die no[17,16-d]oxazole-3,20-dione (INN deflazacort) which comprises reacting (11.beta.,16.beta.)-11,21 -dihydroxy-2'-methyl-5'H-pregna-1,4-dieno[17,16-d]oxazole-3,20-dione with acetic anhydride in a suitable organic solvent in the presence of a basic catalyst and water.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: August 15, 2000
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Luigi Forte, Calogero Cancellieri