(E)-3-(1-methyl-1H-imidazol-4-yl)acrylic acid (1R,4aR,6R,10R,11R,12aR)-11-(2,2-dimethylpropionyloxy)-1-isopropyl-4-methyl-10-[tetrahydropyran-2-yloxy]-1,2,4a,5,6,7,10,11,12,12a-decahydrobenzocyclodecen-6-yl ester 在
对甲苯磺酸 作用下,
以
乙醇 、
水 为溶剂,
反应 96.0h,
以40%的产率得到(E)-3-(1-methyl-1H-imidazol-4-yl)acrylic acid (1R,4aR,6R,10R,11R,12aR)-11-(2,2-dimethylpropionyloxy)-1-isopropyl-4-methyl-10-hydroxy-1,2,4a,5,6,7,10,11,12,12a-decahydrobenzocyclodecen-6-yl ester