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.
该发明涉及
咪唑吡啶并
咪唑啉衍
生物。更具体地说,涉及式(I)的4-(
联苯基-3-基)-7H-
咪唑并[4,5-c]
吡啶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
咪唑吡啶衍生物调节
GABAA受体的活性。它们在治疗多种疾病,包括疼痛方面具有用途。