申请人:Zajac Matthew Allen
公开号:US20120226053A1
公开(公告)日:2012-09-06
The present application provides a process for the preparation of α-carboxamide pyrrolidine derivatives of formula (I), wherein R
1
and R
2
are independently hydrogen, C
1-6
alkyl or C
3-6
cycloalkylC
1-6
alkyl; or such R
1
and R
2
, together with the nitrogen to which they are attached, may form an unsubstituted 3-, 4-, 5- or 6-membered saturated ring; X is carbon or nitrogen; n is 0, 1 or 2, wherein when present each R
5
is independently selected from the list consisting of C
1-3
alkyl, halogen, cyano, haloC
1-3
alkyl, hydroxy, C
1-3
alkoxy and C
1-3
haloalkoxy; either R
6
or R
7
is —O—R
8
, —OCHR
9
R
8
,—NCH
2
R
8
or —(CH
2
)
2
R
8
wherein the other R
6
or R
7
is hydrogen or R
5
; and wherein R
8
is a phenyl ring or wherein the phenyl ring is optionally substituted by one or more groups independently selected from the list consisting of C
1-3
alkyl, halogen, cyano, haloC
1-3
alkyl, hydroxy, C
1-3
alkoxy and C
1-3
haloalkoxy; and R
9
is hydrogen or C
1-3
alkyl.
本申请提供了一种制备式(I)的α-羧酰胺吡咯烷衍生物的方法,其中R1和R2分别为氢、C1-6烷基或C3-6环烷基C1-6烷基;或者这样的R1和R2,与它们连接的氮一起,可以形成未取代的3、4、5或6元饱和环;X为碳或氮;n为0、1或2,其中当存在时,每个R5都独立地选自C1-3烷基、卤素、氰基、卤代C1-3烷基、羟基、C1-3烷氧基和C1-3卤代烷氧基的列表;R6或R7为—O—R8、—OCHR9R8、—NCH2R8或—(CH2)2R8,其中另一个R6或R7为氢或R5;R8为苯环或苯环可选择地被一个或多个独立选自C1-3烷基、卤素、氰基、卤代C1-3烷基、羟基、C1-3烷氧基和C1-3卤代烷氧基的基团取代;R9为氢或C1-3烷基。