(2S)-N-{1-[2-(1H-indol-3-yl)-ethyl]-3-methyl}-2-[methyl-(2-oxo-2-phenyl-propionyl)-amino]butyramide 在
盐酸 作用下,
以
乙酸乙酯 为溶剂,
生成 (3S,12bR)-12b-benzyl-3-isopropyl-2-methyl-2,3,6,7,12,12b-hexahydro-pyrazino[1',2':1,2]pyrido[3,4-b]indole-1,4-dione 、 (3S,12bS)-12b-benzyl-3-isopropyl-2-methyl-2,3,6,7,12,12b-hexahydro-pyrazino[1',2':1,2]pyrido[3,4-b]indole-1,4-dione