正丙胺 、 4-氨基-3,5-二氯哒嗪 在
crude residue 、 silica gel 、 methanol-dichloromethane 作用下,
反应 5.0h,
以to afford the title compound as a brown solid in 35% yield, 800 mg的产率得到5-chloro-N3-propylpyridazine-3,4-diamine
The present invention relates to imidazopyridazine derivatives. More particularly, it relates to 4-(biphenyl-3-yl)-7H-imidazo[4,5-c]pyridazine derivatives of formula (I):
and pharmaceutically acceptable salts thereof, wherein R
1
, R
2
, R
3
, R
4
and R
5
are as defined in the description. The imidazopyridazine derivatives of the present invention modulate the activity of the GABA
A
receptor. They are useful in the treatment of a number of conditions, including pain.
本发明涉及咪唑吡啶并嗪衍生物。更具体地,涉及式(I)的4-(联苯基-3-基)-7H-咪唑并嗪衍生物及其药学上可接受的盐,其中R1、R2、R3、R4和R5如描述中所定义。本发明的咪唑吡啶并嗪衍生物调节GABA A 受体的活性。它们在治疗多种疾病,包括疼痛方面具有用处。
IMIDAZOPYRIDAZINE DERIVATIVES AS GABAA RECEPTOR MODULATORS
申请人:Pfizer Limited
公开号:EP2938615B1
公开(公告)日:2016-10-26
US8952008B2
申请人:——
公开号:US8952008B2
公开(公告)日:2015-02-10
[EN] IMIDAZOPYRIDAZINE DERIVATIVES AS GABAA RECEPTOR MODULATORS<br/>[FR] DÉRIVÉS D'IMIDAZOPYRIDAZINE EN TANT QUE MODULATEURS D'UN RÉCEPTEUR GABAA
申请人:PFIZER LTD
公开号:WO2014091368A1
公开(公告)日:2014-06-19
Chemical Compounds The present invention relates to imidazopyridazine derivatives. More particularly, it relates to 4-(biphenyl-3-yl)-7H-imidazo[4,5- c]pyridazine derivatives of formula (I) and pharmaceutically acceptable salts thereof, wherein R1, R 2, R3, R4 and R5 are as defined in the description. The imidazopyridazine derivatives of the present invention modulate the activity of the GABAA receptor. They are useful in the treatment of a number of conditions, including pain.