(1S,3aS,4R,5R,5aR,8aR,8bS)-4-Ethyl-5-(4-methanesulfonyloxy-butyl)-1-methyl-2-oxo-decahydro-furo[3,2-e]indole-6-carboxylic acid methyl ester 在
sodium iodide 作用下,
以
丙酮 为溶剂,
反应 2.0h,
以98%的产率得到methyl (1S,3aS,4R,5R,5aR,8aR,8bS)-4-ethyl-5-(4-iodobutyl)-1-methyl-2-oxo-3a,4,5,5a,7,8,8a,8b-octahydro-1H-furo[3,2-e]indole-6-carboxylate