4-cyclohexylamino-2-methyl-5-nitrobenzoic acid methyl ester 、
4-氯-2-甲基苯甲酸 、
5-hydroxy-DL-tryptophan methyl ester hydrochloride 在
methyl ester 作用下,
以the title compound of example 154 was obtained的产率得到(2S)-2-[[1-cyclohexyl-2-(3-furyl)-6-methyl-benzimidazole-5-carbonyl]amino]-3-(5-hydroxy-1H-indol-3-yl)propanoic acid