75403-10-0Relevant academic research and scientific papers
Amino-substituted imidazo[1,2-a:3,4-a']diquinolin-15-ium salts compositions and method of use
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, (2008/06/13)
Amino-substituted imidazo[1,2-a:3,4-a']diquinolin-15-ium salts having the formula I: STR1 wherein R1 is hydrogen, lower alkyl, C4 -C6 cycloalkyl, di(lower alkyl)amino, 1-azetidinyl, 1-pyrrolidinyl, 1-piperidinyl, methyl-1-pyrrolidinyl, methyl-1-piperidinyl, 4-morpholinyl or 2,2-dimethylhydrazino; R2 is hydrogen, lower alkyl, lower alkylamino, di(lower alkyl)amino, C4 -C6 cycloalkylamino, lower alkoxy(lower alkyl)amino, 1-azetidinyl, 1-pyrrolidinyl, 1-piperidinyl, methyl-1-pyrrolidinyl, methyl-1-piperidinyl, hexahydro-1H-azepin-1-yl, 4-morpholinyl, benzylamino, N-methylbenzylamino or 2-phenylethylamino; R3 is hydrogen or methyl; X is an anion; with the proviso that at least one of R1 and R2 is other than hydrogen, lower alkyl or C4 -C6 cycloalkyl; and with the further proviso that when R2 is dimethylamino, at least one of R1 and R3 is other than hydrogen, and intermediates used in the preparation thereof are disclosed. The compounds of the invention are prepared by amination of the corresponding chloro or fluoro-substituted imidazo [1,2-a:3,4-a']diquinolin-15-ium salts; either the halo substituted intermediates or the amino substituted salts may be further treated, typically using ion exchange techniques to obtain a variety of physiologically acceptable amino-substituted [1,2-a:3,4-a']diquinolin-15-ium salts which exhibit antifungal activity.
