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ChemInform Abstract: Synthesis and Photobiological Activity of N-Substituted 2-Oxo-2H-1- benzopyran-3-(thio)carboxamides.

✍ Scribed by Y. EL-AHMAD; J.-D. BRION; P. REYNAUD; D. AVERBECK; S. AVERBECK

Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199708131

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✦ Synopsis

Synthesis and Photobiological Activity of N-Substituted 2-Oxo-2H-1benzopyran-3-(thio)carboxamides.

-Piperidine-catalyzed condensation of benzaldehydes (I) with the malonic derivatives (II) gives a variety of polyfunctional coumarins ( III) (12 examples). They react readily with methyl iodide to the quarternary salts (V). In vitro studies exhibit significant photoinduced cytotoxic activity of (IIIc) and (IVc).

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