methyl 3-[(1R,3R,5S,7R)-7-methoxy-2,2-dimethylbicyclo[3.3.0]oct-3-yl]-2-diazo-3-oxopropanoate 在
tetrakis(trifluoroacetato)rhodium(II) 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
以79%的产率得到methyl (1R,2S,6R,8S,10R)-10-methoxy-2-methyl-5-oxotricyclo[6.3.0.0(2,6)]undecane-4-carboxylate