Patents

An improved process for the preparation of 20-oxopregnenane compounds

An improved process for the preparation of 20-oxopregnane compounds of formula 2 Wherein R-H2 or OAc group which comprises reducing 16-dehydropregnane compound 01 formula 1 wherein R-H2 or O.Ac with bimetal reducing system comprising zinc and nickel hexahydrate or zinc - AlCl3 or Co - NiCl2 in and organic solvent in presence of water at temperature in the range of 17 to 30o C for a period in the range of 5 to 10 hrs isolation and purifying 20-oxopregnane compounds by known methods.

Filing Date: 22-10-1999

Issue Date: 27-03-2004

Patent No: IN192295 [India]

Application No: 1404/DEL/99

Inventor(s): Pritish Kumar Chowdhury; Saroj Hazarika; Bedanta Kumar Bora; Molnuddin Ahmed

Licensing Option: Laboratory willing to jointly develop technology with industrial partner.

Implementing institute: CSIR-North East Institute of Science and Technology [CSIR-NEIST]

Funding agency: Council of Scientific and Industrial Research (CSIR)

IPC Classification: C07J7/00

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