(9Z,11E)-(4R,6R,8S,13R)-13-(tert-Butyl-dimethyl-silanyloxy)-17,19-dihydroxy-4-methyl-3-oxa-tricyclo[13.4.0.06,8]nonadeca-1(15),9,11,16,18-pentaen-2-one 在
氟化氢吡啶 作用下,
以
四氢呋喃 为溶剂,
以74%的产率得到(9Z,11E)-(4R,6R,8S,13R)-13,17,19-Trihydroxy-4-methyl-3-oxa-tricyclo[13.4.0.0
6,8]nonadeca-1(15),9,11,16,18-pentaen-2-one