A compound of formula (I), wherein R
2
represents C
1-3
alkyl, halogen or hydrogen; R
3
represents straight or branched alkyl group of 1-6 carbon atoms; with the proviso that, when R
3
represents C
1-3
alkyl, R
2
represents C
1-3
alkyl, R
1
cannot represent phenyl optionally substituted by one or more substituents selected from halogen, C
1-3
alkyl, trifluoromethyl, nitro, cyano, —CO
2
R
c
, —CONR
c
R
d
, —COR
c
, —SOR
e
, —SO
2
R
e
, —SO
3
H, —SO
2
NR
c
R
d
, —OR
c
, —NHSO
2
R
e
, —NHCOR
c
and —NR
c
R
d
; and salts and solvates thereof, in particular, physiologically acceptable solvates and salts thereof. These compounds are agonists at the Adenosine A1 receptor.
式 (I) 的化合物,其中 R
2
代表 C
1-3
烷基、卤素或氢;R
3
代表 1-6 个碳原子的直链或支链烷基;但当 R
3
代表 C
1-3
烷基时,R
2
代表 C
1-3
烷基,R
1
不能代表被一个或多个取代基任选取代的苯基,这些取代基选自卤素、C
1-3
烷基、三
氟甲基、硝基、
氰基、-CO
2
R
c
、-CONR
c
R
d
, -COR
c
, -SOR
e
, -SO
2
R
e
,-SO
3
H, -SO
2
NR
c
R
d
,-OR
c
, -NHSO
2
R
e
, -NHCOR
c
和-NR
c
R
d
及其盐和溶剂,特别是生理上可接受的溶剂和盐。这些化合物是
腺苷 A1 受体的激动剂。