carbamic acid (Z,Z)-(1S,2S,3R,8S,9S,10S)-3,9-bis(4-methoxybenzyloxy)-2,8,10-trimethyl-1-[(Z)-(S)-1-methylpenta-2,4-dienyl]-15-(tetrahydropyran-2-yloxy)pentadeca-6,11-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93%的产率得到carbamic acid (Z,Z)-(1S,2S,3R,8S,9S,10S)-15-hydroxy-3,9-bis(4-methoxybenzyloxy)-2,8,10-trimethyl-1-[(Z)-(S)-1-methylpenta-2,4-dienyl]pentadeca-6,11-dienyl ester