三氟乙酸 、
2-(2-tert-butoxycarbonylamino-4-{4-[4-(4-chlorophenyl)-6,7-dihydro-4H-thieno[3,2-c]pyridine-5-carbonyl]phenyl-carbamoyl}butyrylamino)propionic acid tert-butyl ester 以
二氯甲烷 为溶剂,
以100%的产率得到1-(1-carboxyethylcarbamoyl)-3-{4-[4-(4-chlorophenyl)-4,5,6,7-tetrahydro-4H-thieno[3,2-c]pyridine-5-carbonyl]phenylcarbamoyl}propylammonium trifluoroacetate