2,2,2-trichloroethyl N-[(1'S,2'S,3S,5'R,8'R)-8'-[(2S)-2-ethyloxiran-2-yl]-6-methoxy-2-oxospiro[1H-indole-3,4'-6-oxabicyclo[3.2.2]nonane]-2'-yl]carbamate 在
锌 作用下,
以
溶剂黄146 为溶剂,
反应 4.5h,
以82%的产率得到(1R,2S,4S,6R,7R,8S)-6-ethyl-6-(hydroxymethyl)-6'-methoxyspiro[10-oxa-5-azatricyclo[5.3.1.04,8]undecane-2,3'-1H-indole]-2'-one