(1R,3Z,7S,9E,11S,17R)-11-hydroxy-7-[(E,1S)-1-hydroxy-3-(2-methyl-1,3-thiazol-4-yl)prop-2-enyl]-13-methylidene-6,21-dioxabicyclo[15.3.1]henicosa-3,9,19-trien-5-one 在
titanium(IV) isopropylate 、
叔丁基过氧化氢 、
L-(+)-酒石酸二异丙酯 作用下,
以
二氯甲烷 为溶剂,
以83%的产率得到(1R,7S,8S,10S,12S,15Z,18R)-7-hydroxy-12-[(E,1S)-1-hydroxy-3-(2-methyl-1,3-thiazol-4-yl)prop-2-enyl]-5-methylidene-9,13,22-trioxatricyclo[16.3.1.08,10]docosa-15,19-dien-14-one