申请人:——
公开号:US20020103379A1
公开(公告)日:2002-08-01
The invention is a process for preparing 3-fluoro-2-pyridylmethyl-3-(2,2-difluoro-2-(2-pyridyl)ethylamino)-6-chloropyrazin-2-one-1-acetamide which comprises coupling
1
with 2-aminomethyl-3-fluoropyridine dihydrochloric acid salt in the presence of a coupling reagent and a base to form 3-fluoro-2-pyridylmethyl-3-(2,2-difluoro-2-(2-pyridyl)ethylamino)-6-chloropyrazin-2-one-1-acetamide.
该发明是一种制备3-氟-2-吡啶甲基-3-(2,2-二氟-2-(2-吡啶基)乙基氨基)-6-氯吡咯烷-2-酮-1-乙酰胺的过程,包括在偶联试剂和碱的存在下,将2-氨甲基-3-氟吡啶双盐酸盐与1偶联,形成3-氟-2-吡啶甲基-3-(2,2-二氟-2-(2-吡啶基)乙基氨基)-6-氯吡咯烷-2-酮-1-乙酰胺。