2-(R)-(2-Methyl-3-(R)-formyl-4-(S)-(3-fluorophenyl)pyrrolidin-1-yl)-3-(cyclopropyl)propionic acid, benzyl ester 、
4-(3-Benzyl-1-ethyl-(1H-pyrazol-5-yl))piperidine, trifluoro-acetic acid salt 以to afford 34.3 mg (46% yield) of the title compound的产率得到2-(R)-(2-Methyl-3-(S)-((4-(3-benzyl-1-ethyl-(1H-pyrazol-5-yl))piperidin-1-yl)methyl)-4-(S)-(3-fluorophenyl)pyrrolidin-1-yl)-3-(cyclopropyl)propionic acid