N,N'-羰基二(1,2,4-三氮唑) 、
3-(4-piperidinyl)-1,3,4,5-tetrahydro-1,3-benzodiazepin-2-one 、
(R)-2-amino-3-(4-amino-3-chloro-5-methyl-phenyl)-propionic acid ethylester 以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 12.5h,
以95%的产率得到(R)-3-(4-amino-3-chloro-5-methyl-phenyl)-2-{[4-(2-oxo-1,2,4,5-tetrahydro-benzo[d][1,3]diazepin-3-yl)-piperidin-1-carbonyl]-amino}-propionic acid ethylester