(Z)-(4S,7R,8S,9S,17S)-4,8-Dihydroxy-5,5,7,9-tetramethyl-17-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-oxacycloheptadec-14-ene-2,6-dione 在
甲基(三氟甲基)-1,3-二环氧丙烷 作用下,
以
乙腈 为溶剂,
生成 (1S,3S,7S,10R,11S,12S,17R)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-4,18-dioxa-bicyclo[15.1.0]octadecane-5,9-dione 、 (1R,3S,7S,10R,11S,12S,17S)-7,11-Dihydroxy-8,8,10,12-tetramethyl-3-[(E)-1-methyl-2-(2-methyl-thiazol-4-yl)-vinyl]-4,18-dioxa-bicyclo[15.1.0]octadecane-5,9-dione