
%0 Journal Article
%A Barlin, GB 
%A Davies, LP 
%A Ireland, SJ 
%A Ngu, MML 
%T Imidazo[1,2-b]Pyridazines. V. Syntheses and Central Nervous Activities of Some 3-Alkoxy-6-benzylthio(substituted benzylthio and Other phenylalkylthio)-2-phenyl(and substituted phenyl)imidazo[1,2-b]pyridazines
%J Australian Journal of Chemistry
%D 1989/07/01
%V 42
%N 7
%P 1133-1146
%K 
%R https://doi.org/10.1071/CH9891133
%U https://www.publish.csiro.au/paper/CH9891133 
%X Syntheses are reported for a number of 3-alkoxy-6-benzylthio(substituted benzylthio and other phenylalkylthio )-2-phenyl(and substituted phenyl)imidazo[l,2-b]pyridazines. These compounds were then examined for their ability to displace 3H-diazepam from rat brain membranes. In preliminary tests, in the presence of 100 µm &#947;- aminobutyric acid (GABA) and under standard assay conditions (see Experimental), 6-benzylthio-3-methoxy-2-phenylimidazo[l,2- b]pyridazine gave an lC50 value of 25nM (IC50 for unlabelled diazepam is 4.3 nM ); its 6-(m- aminophenyl ), 6-(p- aminophenyl ) and 6-(m- nitrophenyl ) analogues gave values of 15, 9 and 8 nM respectively. 
