(2S)-6-bromo-5-oxo-2-[[2-(phenylmethoxycarbonylamino)acetyl]amino]hexanoic acid 、 1-benzyl-3,4,5-trimethyl-1H-imidazole-2(3H)-thione 以
甲醇 为溶剂,
反应 48.0h,
以78%的产率得到2-[[2-(benzyloxycarbonylamino)acetyl]amino]-6-(1-benzyl-3,4,5-trimethyl-imidazol-3-ium-2-yl)sulfanyl-5-oxo-hexanoic acid bromide