3-{[(R)-1-{[((S)-1-Carbamimidoyl-2-ethoxy-piperidin-3-ylcarbamoyl)-methyl]-carbamoyl}-2-(1-carbamimidoyl-piperidin-4-yl)-ethylsulfamoyl]-methyl}-benzoic acid methyl ester 在
盐酸 、 lithium hydroxide 作用下,
以
乙醇 为溶剂,
生成 3-{[(R)-1-{[((S)-1-Carbamimidoyl-2-hydroxy-piperidin-3-ylcarbamoyl)-methyl]-carbamoyl}-2-(1-carbamimidoyl-piperidin-4-yl)-ethylsulfamoyl]-methyl}-benzoic acid; TFA