在
lithium diisopropyl amide 、 naphthalen-1-yl-lithium 作用下,
以
四氢呋喃 、
正己烷 为溶剂,
以70%的产率得到(1R,3R,7R,10R,11R,14S,21R,26S,27S,28S,29R,30R)-24-[[tert-butyl(dimethyl)silyl]oxymethyl]-11-hydroxy-21-[(2S,3R)-4-hydroxy-2,3-dimethylbutyl]-11,30-dimethyl-16-methylidene-29-triethylsilyloxy-32,33,34,35,36-pentaoxaheptacyclo[25.4.1.11,28.13,7.17,10.110,14.021,26]hexatriacont-24-en-20-one