(9H-Fluoren-9-ylmethoxycarbonylamino)-acetic acid (3R,4S,5S,6R)-5-methoxy-4-[(2R,3R)-2-methyl-3-(3-methyl-but-2-enyl)-oxiranyl]-1-oxa-spiro[2.5]oct-6-yl ester 在
哌啶 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成 (2,5-dioxopyrrolidin-1-yl) 8-[[2-[[(3R,4S,5S,6R)-5-methoxy-4-[(2R,3R)-2-methyl-3-(3-methylbut-2-enyl)oxiran-2-yl]-1-oxaspiro[2.5]octan-6-yl]oxy]-2-oxoethyl]amino]-8-oxooctanoate