(5S,9S)-7,7-dimethyl-25-methylidene-6,8,23,27-tetraoxa-3,11-diazahexacyclo[26.8.0.05,9.013,22.015,20.030,35]hexatriaconta-1(36),13,15,17,19,21,28,30,32,34-decaene-2,12-dione 反应 2.0h,
以88%的产率得到(17S,21S)-33,34-dihydroxy-19,19-dimethyl-3-methylidene-18,20-dioxa-15,23-diazahexacyclo[23.7.1.15,13.06,11.017,21.027,32]tetratriaconta-1(33),5(34),6,8,10,12,25,27,29,31-decaene-14,24-dione