申请人:Carter H. Percy
公开号:US20050277666A1
公开(公告)日:2005-12-15
The present application describes a process of preparing a compound of formula (IV),
or salt or stereoisomer thereof: wherein Pg, at each occurrence, is independently selected from an amine protecting group;
comprising the steps of reacting a compound of Formula
with a reducing agent to give a compound of Formula III:
reacting the compound of formula (III) with an amine of formula (IIa) using reductive amination to give the compound of formula (III)
本申请描述了制备化合物IV的过程,或其盐或立体异构体:其中Pg在每次出现时独立地选择自氨基保护基团;包括以下步骤:将化合物Formula与还原剂反应得到化合物Formula III;将化合物Formula III与式IIa的胺基进行还原胺化反应得到化合物Formula III。