[(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] 2-diazo-2-phenylacetate 在
dirhodium tetraacetate 作用下,
以
二氯甲烷 为溶剂,
以47%的产率得到(1R,5R,7R,8S)-7-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-3,3-dimethyl-11-phenyl-2,4,6,9-tetraoxatricyclo[6.3.0.01,5]undecan-10-one