(Z)-(1aR,5aS,8S,8aS,10S,10aS)-10-Hydroxy-4-hydroxymethyl-8,10a-dimethyl-1a,3,5a,8,8a,9,10,10a-octahydro-2H-1,6-dioxa-cyclopenta[a]cyclopropa[e]cyclodecen-7-one 在
二氯二茂钛 2,4,6-三甲基吡啶 、
锰 、
2,4,6-collidine hydrochloride 作用下,
生成
9β-hydroxy-11,13-dihydroreynosin