(+)-氯甲酸薄荷醇酯 、 (3aR,4R,5R,5aS,8aR,8bR)-5-Benzyloxy-2,2,7,7-tetramethyl-hexahydro-benzo[1,2-d;3,4-d']bis[1,3]dioxol-4-ol 在
吡啶 作用下,
以
二氯甲烷 为溶剂,
以28%的产率得到[(1S,2R,5S)-5-methyl-2-propan-2-ylcyclohexyl] [(1S,2R,6R,7S,8R,9R)-4,4,11,11-tetramethyl-8-phenylmethoxy-3,5,10,12-tetraoxatricyclo[7.3.0.02,6]dodecan-7-yl] carbonate