Title: Process for preparation of bile acid derivatives
Application Number: 00812195 Application Date: 2000.08.23
Publication Number: 1371387 Publication Date: 2002.09.25
Approval Pub. Date: 2004.11.10 Granted Pub. Date: 2004.11.10
International Classifi-cation: C07J41/00;C07J43/00
Applicant(s) Name: Brecke Imaging S.P.A. Address:
Inventor(s) Name: M. Brocchetta;C. Gallotti;M. Visigalli
Attorney & Agent: huang gesheng
Abstract:
    A process for the preparation of the compounds of general formula (I)in whichR1 is H or OH;R2 is H, alpha-OH, or beta-OH; andR3 is a straight or branched C1-C4 alkyl group or a benzyl group,comprising the reduction of compounds of formula (III)wherein R1, R2 and R3 have the same meanings as in formula I, in the presence of sodium borohydride.
Time: 4