申请人:Annis David Gary
公开号:US20050215798A1
公开(公告)日:2005-09-29
This invention relates to a method for preparing 3-halo-4,5-dihydro-
1
H-pyrazole compound of Formula (I), comprising contacting with HX
1
a different 4,5-dihydro-1H-pyrazole compound of Formula (II), wherein X
1
is halogen and L, R, k and X
2
are as defined in the disclosure. This invention also discloses preparation of compounds of Formula (III) wherein X
1
, R
3
, R
6
, R
7
, R
8a
, R
8b
, and n are as defined in the disclosure.
本发明涉及一种制备3-卤代-4,5-二氢-1H-吡唑化合物的方法(I),包括与式(II)中不同的4,5-二氢-1H-吡唑化合物接触,其中X1是卤素,L、R、k和X2如公开说明所定义。本发明还揭示了式(III)化合物的制备方法,其中X1、R3、R6、R7、R8a、R8b和n如公开说明所定义。