申请人:Vertex Pharmceuticals Incorporated
公开号:EP2194039A1
公开(公告)日:2010-06-09
This invention relates to a process for preparing a compound of Formula 1
wherein:
the carbon atoms alpha and beta to the carboxy group are stereocenters;
R1 is independently H, optionally substituted aliphatic, optionally substituted cycloaliphatic, optionally substituted arylaliphatic, optionally substituted heteroaliphatic or optionally substituted heteroarylaliphatic;
R'1 is deuterium such that the deuterium enrichment is at least 50%;
R'2 is -NHR2 or -OE;
R2 is H, optionally substituted aliphatic, optionally substituted cycloaliphatic, optionally substituted arylaliphatic, optionally substituted heteroaliphatic or optionally substituted heteroarylaliphatic; and
E is C1-6 alkyl or benzyl;
wherein the process comprises the steps of:
a) forming a salt of a compound of Formula 1, and
b) crystallizing said salt to give a compound of greater than 55% enantiomeric excess.
本发明涉及一种制备式 1 化合物的工艺
其中
羧基的碳原子α和β是立体中心;
R1 独立地为 H、任选取代的脂肪族、任选取代的环脂族、任选取代的芳脂族、任选取代的杂脂族或任选取代的杂芳脂族;
R'1 是氘,氘富集度至少为 50%;
R'2 是-NHR2 或-OE;
R2 是 H、任选取代的脂肪族、任选取代的环脂族、任选取代的芳脂族、任选取代的杂脂族或任选取代的杂芳脂族;以及
E 是 C1-6 烷基或苄基;
其中该工艺包括以下步骤
a) 形成式 1 化合物的盐,和
b) 结晶所述盐,得到对映体过量率大于 55%的化合物。