(1R)-2-amino-1-[6-(2,5-dimethyl-1H-pyrrol-1-yl)-3-pyridinyl]ethanol dihydrochloride 、
6-{4-[4-(3-Cyclopentyl-propyl)-5-oxo-4,5-dihydro-tetrazol-1-yl]-phenylsulfamoyl}-chroman-(S)-2-carboxylic acid 在
1-羟基苯并三唑 、
1-(3-二甲基氨基丙基)-3-乙基碳二亚胺 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
以81%的产率得到6-{4-[4-(3-cyclopentyl-propyl)-5-oxo-4,5-dihydro-tetrazol-1-yl]-phenylsulfamoyl}-chroman-(2S)-2-carboxylic acid {2-[6-(2,5-dimethyl-pyrrol-1-yl)-pyridin-3-yl]-(2R)-2-hydroxy-ethyl }-amide