An improved synthesis of the saponin, polyphyllin D
摘要:
Polyphyllin D, namely diosgenyl alpha -L-rhamnopyranosyl-(1->2)-[(alpha -L-arabinofuranosyl)-(1->4)]-beta -D-glucopyranoside, was synthesized from diosgenyl-beta -D-glucopyranoside in four steps and in 30% overall yield, taking advantage of regioselective pivaloylation and alpha -L-rhamnopyranosylation reactions. (C) 2001 Elsevier Science Ltd. All rights reserved.
An improved synthesis of the saponin, polyphyllin D
摘要:
Polyphyllin D, namely diosgenyl alpha -L-rhamnopyranosyl-(1->2)-[(alpha -L-arabinofuranosyl)-(1->4)]-beta -D-glucopyranoside, was synthesized from diosgenyl-beta -D-glucopyranoside in four steps and in 30% overall yield, taking advantage of regioselective pivaloylation and alpha -L-rhamnopyranosylation reactions. (C) 2001 Elsevier Science Ltd. All rights reserved.