(3S,5R,7R,8R,9S,10S,13R,14S,17R)-3-Amino-17-[(R)-4-(tert-butyl-dimethyl-silanyloxy)-1,5-dimethyl-hexyl]-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-7-ol 在
sodium hydroxide 、
potassium carbonate 作用下,
以
四氢呋喃 、
乙腈 为溶剂,
反应 20.0h,
生成 benzyl N-[(3S,5R,7R,8R,9S,10S,13R,14S,17R)-17-[(2R)-5-[tert-butyl(dimethyl)silyl]oxy-6-methylheptan-2-yl]-7-hydroxy-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]-N-[3-[3-cyanopropyl-(4-methylphenyl)sulfonylamino]propyl]carbamate