((E)-2-Methyl-3-piperidin-1-yl-thioacryloyl)-carbamic acid ethyl ester 、
(4-氨基甲基-苯基)-氨基甲酸苄酯 、 alkaline earth salt of/the/ methylsulfuric acid 生成 (S)-2-Benzyloxycarbonylamino-3-[4-(4-benzyloxycarbonylamino-benzylamino)-5-methyl-2-oxo-2H-pyrimidin-1-yl]-propionic acid