(5Z,7E,22E)-(1S,3R)-1,3-bis[[dimethyl(1,1-dimethylethyl)silyl]oxy]-25-phenyl-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraen-24-one 、
(5Z,7E,22E)-(1S,3R,24S)-1,3-bis[[dimethyl(1,1-dimethylethyl)silyl]oxy]-25-phenyl-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraen-24-ol 、
(5Z,7E,22E)-(1S,3R,24R)-1,3-bis[[dimethyl(1,1-dimethylethyl)silyl]oxy]-25-phenyl-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraen-24-ol 、
tetra-n-butylammoniumfluoride trihydrate 在
sodium borohydrid 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
生成 (5Z,7E,22E)-(1S,3R,24S)-25-phenyl-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-1,3,24-triol 、 (5Z,7E,22E)-(1S,3R,24R)-25-phenyl-26,27-cyclo-9,10-secocholesta-5,7,10(19),22-tetraene-1,3,24-triol