(5E,7E,22E)-(1S,3R)-1,3-Bis[[dimethyl(1,1dimethylethyl)silyl]oxy]-24-oxo-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-25-carboxylic acid diethyl amide 在
sodium borohydrid 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
生成
(5E,7E,22E)-(1S,3R,24R)-1,3-Bis[[dimethyl(1,1dimethylethyl)silyl]oxy]-24-hydroxy-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-25-carboxylic acid diethyl amide