Transformations of the pyrido[1,2-a]pyrazine ring system into imidazo[1,2-a]pyridines,imidazo[1,2-a]pyrimidines and 2-oxa-6a, 10c-diazaaceanthrylenes |
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Authors: | Patrik Kolar,Miha Ti ler,Alessandro Pizzioli |
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Affiliation: | Patrik Kolar,Miha Tišler,Alessandro Pizzioli |
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Abstract: | Transformations of methyl 3-dimethylamino-2-(1-methoxycarbonyl-4-oxo-4H-pyrido[1,2-a]pyrazin-3-yl)acrylate with some cyanomethylenecarbonyl group containing compounds or cyanamide into imidazo-[1,2-a]pyridines, irmdazo[1,2-a]pyrimidines and 2-oxa-6a, 10c-diazaaceanthrylenes are described. |
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