申请人:——
公开号:US20030212275A1
公开(公告)日:2003-11-13
The invention provides a process for preparing a compound of formula (I) and pharmaceutically acceptable derivatives thereof wherein: R
0
and R
1
are independently selected from H. halogen, C
1-6
alkyl, C
1-6
alkoxy. or C
1-6
alkoxy substituted by one or more fluorine atoms; R
2
is H, C
1-6
alkyl. C
1-6
alkyl substituted by one or more fluorine atoms. C
1-6
alkoxy, C
1-6
hydroxyalkyl. SC
1-6
alkyl. C(O)H. C(O)C
1-6
alkyl. C
1-6
alkylsulfonyl. C
1-6
alkoxy substituted by one or more fluorine atoms, halogen. CN, CONR
4
R
5
, CO
2
H, CO
2
C
1-6
alkyl, or NHSO
2
R
4
, R
3
is H or phenyl substituted by SO
2
C
1-6
alkyl or SO
2
NH
2
: R
4
and R
5
are independently selected from H, C
1-6
alkyl, phenyl, phenyl substituted by one or more atoms or groups R
6
, or together with the nitrogen atom to which they are attached form a saturated 4 to 8 membered ring R
6
is halogen, C
1-6
alkyl, C
1-6
alkoxy or C
1-6
alkoxy substituted by one or more fluorine atoms; which comprises rearrangement of an azirine of formula (11) wherein R
0
to R
3
are as defined for formula (I), or a protected derivative thereof, in the presence of a catalyst and a solvent.
1
该发明提供了一种制备式(I)化合物及其药学上可接受的衍生物的过程,其中:R0和R1独立地选自H、卤素、C1-6烷基、C1-6烷氧基或C1-6烷氧基,其被一个或多个氟原子取代;R2为H、C1-6烷基、C1-6烷基被一个或多个氟原子取代、C1-6烷氧基、C1-6羟基烷基、SC1-6烷基、C(O)H、C(O)C1-6烷基、C1-6烷基磺酰基、C1-6烷氧基被一个或多个氟原子取代、卤素、CN、CONR4R5、CO2H、CO2C1-6烷基或NHSO2R4,R3为H或苯基,其被SO2C1-6烷基或SO2NH2取代;R4和R5独立地选自H、C1-6烷基、苯基、苯基被一个或多个原子或基团R6取代,或与它们所连接的氮原子一起形成饱和的4到8个成员环;R6为卤素、C1-6烷基、C1-6烷氧基或C1-6烷氧基,其被一个或多个氟原子取代;该过程包括在催化剂和溶剂的存在下重排式(11)的环氮丙烷或其保护衍生物,其中R0到R3如式(I)所定义,或其保护衍生物。