(4S,5S,6R)-5-Acetylamino-4-(tert-butyl-dimethyl-silanyloxy)-6-[(S)-((R)-2,2-dimethyl-[1,3]dioxolan-4-yl)-octyloxy-methyl]-2-methoxy-tetrahydro-pyran-2-carboxylic acid octyl ester 在
Lindlar's catalyst 、 palladium on calcium fluoride poisoned with lead
甲醇 、
硫酸 、
氢气 、
溶剂黄146 作用下,
以
四氢呋喃 、
乙醇 为溶剂,
反应 47.0h,
生成
(4S,5R,6R,1'S,2'R)-5-acetylamino-4-(bis-N,N'-tert-butyloxycarbonyl)-guanidino-6-(2',3'-diacetoxy-1'-octyloxy)propyl-5,6-dihydro-4H-pyran-2-carboxylic acid methyl ester