(2S,2'R,5R,7S,11S,Z)-9-chloro-2-ethyl-2'-mesityl-5,11-dimethylspiro[3-oxa-1(1,3)-benzenacyclododecaphanene-7,4'-[1,3]dioxolan]-9-ene-4,6-dione 在
溶剂黄146 作用下,
生成 (2S,5R,7S,9Z,11S)-9-chloro-2-ethyl-7-hydroxy-7-(hydroxymethyl)-5,11-dimethyl-3-oxabicyclo[11.3.1]heptadeca-1(16),9,13(17),14-tetraene-4,6-dione