methyl (2S)-2-[[(2S)-1-methoxy-4-methyl-1-oxopentan-2-yl]carbamoylamino]-6-(phenylmethoxycarbonylamino)hexanoate 在
羟胺钾盐 作用下,
以
甲醇 为溶剂,
反应 5.0h,
以63.5%的产率得到{5-hydroxycarbamoyl-5-[3-(1-hydroxycarbamoyl-3-methyl-butyl)-ureido]-pentyl}-carbamic acid benzyl ester