methyl 2-[(2R,6S)-6-[(4R)-4-hydroxy-5-[(2R,3S,6R,8R,9S)-3-methoxy-2-[(4-methoxyphenyl)methoxymethyl]-9-methyl-1,7-dioxaspiro[5.5]undec-10-en-8-yl]-2-oxopentyl]oxan-2-yl]acetate 在
2,3-二氯-5,6-二氰基-1,4-苯醌 、
tetramethylammonium triacetoxyborohydride 作用下,
以
二氯甲烷 、
水 、
溶剂黄146 为溶剂,
生成 methyl 2-[(2R,6S)-6-[(2S,4S)-2,4-dihydroxy-5-[(2R,3S,6R,8R,9S)-2-(hydroxymethyl)-3-methoxy-9-methyl-1,7-dioxaspiro[5.5]undec-10-en-8-yl]pentyl]oxan-2-yl]acetate