2-(5(R/S)-amino-5,6,7,8-tetrahydroquinazolin-2-yl)ethanol 、
(R)-2-(3-oxo-1-tosyl-1,2,3,4-tetrahydropyrazin-2-yl)acetic acid 在
1-羟基苯并三唑 、
盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
生成 N-[2-(2-hydroxyethyl)-5,6,7,8-tetrahydroquinazolin-5-yl]-2-[(3R)-4-(4-methylphenyl)sulfonyl-2-oxo-1,3-dihydropyrazin-3-yl]acetamide