3'-[1-(4-chloro-3-methyl-phenyl)-1-methyl-ethylamino]-3,5-dimethyl-biphenyl-4-carboxylic acid hydrochloride 、
L-丙氨酸甲酯盐酸盐 在
O-(benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
生成
(S)-2-({3'-[1-(4-Chloro-3-methyl-phenyl)-1-methyl-ethylamino]-3,5-dimethyl-biphenyl-4-carbonyl}-amino)-propionic acid methyl ester