2-(R)-(3-(R)-formyl-4-(S)-phenylpyrrolidin-1-yl)-2-(cyclohexyl)acetic acid,4-methoxybenzyl ester 、
4-(4-(4-fluorophenyl)-4-oxo-butyl)piperidine trifluoroacetate 以28 mg (56%)的产率得到2-(R)-(3-(S)-(4-(4-(4-Fluorophenyl)-4-oxo-butyl)-piperidin-1-yl)methyl-4-(S)-phenylpyrrolidin-1-yl)-2-(cyclohexyl)acetic acid