Carbamic acid (4Z,9Z)-(1R,6S,7S,8S)-7-(4-methoxy-benzyloxy)-1-[(Z)-(1S,2S,3S)-2-(4-methoxy-benzyloxy)-1,3-dimethyl-hepta-4,6-dienyl]-6,8-dimethyl-13-(tetrahydro-pyran-2-yloxy)-trideca-4,9-dienyl ester 在
4-甲基苯磺酸吡啶 作用下,
以
乙醇 为溶剂,
反应 8.0h,
以81%的产率得到Carbamic acid (4Z,9Z)-(1R,6S,7S,8S)-13-hydroxy-7-(4-methoxy-benzyloxy)-1-[(Z)-(1S,2S,3S)-2-(4-methoxy-benzyloxy)-1,3-dimethyl-hepta-4,6-dienyl]-6,8-dimethyl-trideca-4,9-dienyl ester