[5-chloro-2-(3-methoxy-propyl)-1-oxy-pyridin-4-ylmethyl]-cyclopropyl-amine 、
(rac.)-(3R*,4S*)-6-(2-(2,6-dichloro-4-methylphenoxy)ethoxy)-3',4',5',6'-tetrahydro-2'H-[3,4']bipyridinyl-1',3'-dicarboxylic acid 1'-tert-butyl ester 在
N,N-二甲基甲酰胺 草酰氯 、
三乙胺 作用下,
以
甲苯 、
二氯甲烷 为溶剂,
反应 2.0h,
以47%的产率得到(rac.)-(3'R*,4'S*)-3'-{[5-chloro-2-(3-methoxy-propyl)-1-oxy-pyridin-4-ylmethyl]-cyclopropyl-carbamoyl}-6-[2-(2,6-dichloro-4-methyl-phenoxy)-ethoxy]-3',4',5',6'-tetrahydro-2'H-[3,4']bipyridinyl-1'-carboxylic acid tert-butyl ester