Cocco, M.T., Congiu, C., Maccioni, A., Onnis, V Convenient synthesis of 4-amino-7-(dialkylamino)pyrido[2,3-d]pyrimidines from polysubstituted pyridines

Cocco MT;CONGIU, CENZO;Maccioni A;ONNIS, VALENTINA

1993-01-01

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Abstract

A convenient synthesis of 4-amino-7-(dialkylamino)pyrido[2,3-d]pyrimidines via cyclization of functionalized pyridines is reported. The preparation of the starting pyridines from 3-amino-3-(dialkylaraino)propene-nitriles and ethoxymethylenemalononitrile is described.