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The new pyrrolo[3,4-c]pyridines have been synthesized. 4-Methyl-6-phenyl-1H-pyrrolo[3,4-cpyridine-1,3-dione (1) was the key intermediate for the synthesis of the novel derivatives of various chemical structures. In the first step, the pyrrolo[3,4-c]pyridine-1,3-dione 1 was alkylated to the corresponding N-alkyl-4- methyl-6-phenyl-IH-pyrrolo[3,4-c]pyridine-1,3-dione derivatives 2a-f. The Mannich bases 3a-j were synthesized by treating pyrrolo[3,4-c]pyridine-1,3-dione 1 with appropriate amines and formaldehyde. Hydrolysis of ester 2a gave the appropriate acid 5. Next, amides 4a-e have been obtained. The structures of the new compounds were confirmed by elemental analysis, IR and NMR spectra. The antitumor and antimicrobial activities in vitro of the obtained derivatives were examined. Mannich bases 3c and 3g showed activity against C. albicans and S. aureus.
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Naunyn-Schmiedeberg's archives of pharmacology,
Anna Wojcicka, and
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Molecules (Basel, Switzerland),
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