
TY  - JOUR
A1  - Barlin, GB 
A1  - Davies, LP 
A1  - Ireland, SJ 
A1  - Ngu, MML 
A1  - Zhang, JK 
T1  - Imidazo[1,2-b]pyridazines. XII. Syntheses and Central Nervous System Activities of Some Substituted Imidazo[1,2-b]pyridazines and Related Imidazo[1,2-a]pyridines, Imidazo[1,2-a]pyrimidines and Imidazo[1,2-a]pyrazines
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1992
VL  - 45
IS  - 5
SP  - 877
EP  - 888
KW  - 
UR  - https://doi.org/10.1071/CH9920877 
N2  - Syntheses are reported for some 6-chloro(alkoxy,alkylthio and pheny1thio)-3-benzamidomethyl-(acetamidomethyl and methoxy)-2-arylimidazo[1,2-apyridines and some corresponding imidazo- [1,2- b]pyridazines, imidazo[1,2-a[pyrimidines and imidazo[l,2-a]pyrazines. IC50 values (or percentage displacement) are reported and discussed for the displacement of [3H]diazepam from rat brain membrane by each of these compounds. The imidazo[l,2-a[pyridines were generally slightly less potent than the imidazo[l,2- b]pyridazines but considerably more potent than the corresponding imidazo[1,2-a]pyrimidines or imidazo[1,2- a[pyrazines. Substitution of a 2-aryl group by a 2-alkyl group in imidazo[l,2- b]pyridazines led to a significant loss of activity. 
ER  -

