3-[4-[(2-phenylphenyl)carbamoyloxy]-1-piperidyl]propanoic acid 、
4-氨基-2,5-二甲基苯甲酸甲酯 在
N,N-二异丙基乙胺 、 Methanaminium,N-[(dimethylamino)(3H-1,2,3-triazolo[4,5-b]pyridin-3-yloxy)methylene]-N-methyl-, hexafluorophosphate(1-) 作用下,
以
二氯甲烷 为溶剂,
以59%的产率得到methyl 4-{3-[4-(biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]propionylamino}-2,5-dimethylbenzoate