A process for production of cyclopropyl-fused pyrrolidine-based inhibitors of dipeptidyl peptidase IV is provided which employs a BOC-protected amine of the structure
prepared by subjecting an acid of the structure
to reduce amination by treating the acid with ammonium formate, nicotinamide adenine dinucleotide, dithiothreitol and partially purified phenylalanine dehydrogenase/formate dehydrogenase enzyme concentrate (PDH/FDH) and without isolating treating the resulting amine of the structure 2
with di-tert-butyl dicarbonate to form the BOC-protected amine.
提供了一种制备环丙基融合
吡咯烷基
二肽酶IV
抑制剂的方法,该方法使用结构为的BOC保护胺,该胺是通过将结构为的酸与
甲酸铵、烟酰胺
腺嘌呤二核苷酸、二
硫苏糖醇和部分纯化的苯丙氨酸脱氢酶/
甲酸脱氢酶酶浓缩物(PDH/FDH)进行还原胺化反应制备而成的,并且在没有分离的情况下,使用双叔丁基二
碳酸酯处理产生的结构为2的胺,形成BOC保护胺。