24,25-dihydroxycholestans and process for preparing the same

Details 24,25-dihydroxycholestans and process for preparing the same 24,25-dihydroxycholestans and process for preparing the same

C - Chemistry, Metallurgy

07

J

260/21, 260/60

C07J 31/00 (2006.01) C07C 29/09 (2006.01) C07C 29/10 (2006.01) C07C 29/14 (2006.01) C07D 317/20 (2006.01) C07D 317/32 (2006.01) C07J 9/00 (2006.01) C07J 17/00 (2006.01) C07J 43/00 (2006.01)

Patent

CA 1177480

Abstract of the Disclosure: A 24,25-dihydroxycholestane derivatives of the formula Image wherein A is a steroid residue and R is an aryl group and a process for preparation of the same are disclosed. The derivatives are an intermediate for synthesis of 24,25- dihydroxycholecalciferol having useful physicological activity like that of vitamin D3. 24,25-Dihydroxycholecalci- ferol can be produced in an industrially advantageous method via the intermediate which ls easily prepared from commercially available starting compounds.

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