ethyl(S)-[1-[2-[4-cyano-benzoylamino]-5-ethoxy-carbonylamino-pentanoyl]-piperidin-4-yloxy]acetate 在
sodium ethanolate 盐酸羟胺 作用下,
生成 ethyl(Z)-(S)-[1-[2-[4-(amino-hydroxyimino-methyl)-benzoylamino]-5-ethoxycarbonylamino-pentanoyl]-piperidin-4-yloxy]acetate