(1S,11S,13S,15S)-11-Allyl-15-(tert-butyl-dimethyl-silanyloxy)-7-hydroxy-10,17-dioxa-tricyclo[11.3.1.03,8]heptadeca-3(8),4,6-trien-9-one 在
amberlyst-15 作用下,
以
甲醇 为溶剂,
以99%的产率得到(1S,11S,13R,15S)-11-Allyl-7,15-dihydroxy-10,17-dioxa-tricyclo[11.3.1.0
3,8]heptadeca-3(8),4,6-trien-9-one