prop-2-enyl (3S,5S,9S,10R,13R,17S)-17-cyano-3-[dimethyl(phenyl)silyl]-10-formyl-4,4,13-trimethyl-1,7-dioxo-2,3,5,6,9,11,12,15,16,17-decahydrocyclopenta[a]phenanthrene-6-carboxylate 在
四(三苯基膦)钯 吗啉 、 sodium hydride 、
tetramethylammonium triacetoxyborohydride 作用下,
以
四氢呋喃 、
乙腈 为溶剂,
反应 3.0h,
生成 Dithiocarbonic acid O-[(3S,5S,9S,10R,13R,17S)-17-cyano-3-(dimethyl-phenyl-silanyl)-4,4,13-trimethyl-1,7-dioxo-1,2,3,4,5,6,7,9,11,12,13,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-10-ylmethyl] ester S-methyl ester