(2S)-N-[2-(3,4-dimethoxyphenyl)ethyl]-2-[methyl(2-oxo-3-phenylpropanoyl)amino]-3-phenylpropanamide 在
乙酰氯 作用下,
以
甲醇 为溶剂,
反应 336.0h,
生成 (3S,11bR)-3,11b-dibenzyl-9,10-dimethoxy-2-methyl-7,11b-dihydro-2H-pyrazino[2,1-a]isoquinoline-1,4(3H,6H)-dione 、 (3S,11bS)-3,11b-dibenzyl-9,10-dimethoxy-2-methyl-6,7-dihydro-3H-pyrazino[2,1-a]isoquinoline-1,4-dione