Steroidal beta-o-cellobioside heptaalkanoate process

Details Steroidal beta-o-cellobioside heptaalkanoate process Steroidal beta-o-cellobioside heptaalkanoate process

C - Chemistry, Metallurgy

07

J

C07J 71/00 (2006.01)

Patent

CA 2138016

A process for the synthesis of peracyl-1-O-steroidal-.beta.-cellobiosides that provides excellent .beta.-anomeric selectivity without the use of a metal salt promoter. The process comprises reacting heptaacyl-.beta.-D-cellobiosyl-1-fluoride and a trisubstituted silyl- 3-O-steroid, wherein the steroid is tigogenin, hecogenin, 11-ketotigogenin or diosgenin in the absence of a metal salt under suit- able conditions.

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