ethyl 3,6-[(tert-butoxy)carbonyl]imino-2,3,6-trideoxy-4,5-O-isopropylidene-L-arabino-hexonate 在
sodium hydroxide 作用下,
以
乙醇 为溶剂,
反应 5.0h,
以74%的产率得到(3aR,4S,6aS)-4-Carboxymethyl-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyrrole-5-carboxylic acid tert-butyl ester