(S)-2-Methyl-butyric acid (1S,3R,4S,4aR,5S,6S,7R,8S,8aS)-8-{2-[(2R,4R)-4-(tert-butyl-dimethyl-silanyloxy)-6-oxo-tetrahydro-pyran-2-yl]-ethyl}-4,4a,5,6-tetrahydroxy-3,7-dimethyl-decahydro-naphthalen-1-yl ester 、
N,N'-硫羰基二咪唑 以
甲苯 为溶剂,
反应 2.0h,
以924 mg的产率得到(S)-2-Methyl-butyric acid (3aS,4R,6S,6aS,7S,8R,9S,10S,10aS)-7-{2-[(2R,4R)-4-(tert-butyl-dimethyl-silanyloxy)-6-oxo-tetrahydro-pyran-2-yl]-ethyl}-9,10-dihydroxy-4,8-dimethyl-2-thioxo-octahydro-naphtho[1,8a-d][1,3]dioxol-6-yl ester