Flavone derivatives

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Bacterium or component thereof or substance produced by said...

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424267, 424274, 424283, 26029358, 2603265CA, 2603452, 544151, C07D40510, A61K 31535, C07D40710

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active

040791394

ABSTRACT:
New flavone derivatives to be used as analeptics having the formula ##STR1## wherein R.sub.1 and R.sub.2 are both methyl or ethyl, or taken together with the nitrogen atom to which they are attached represent a mononuclear 5- or -6 membered heterocyclic ring which may contain an oxygen atom as further hetero atom; R.sub.3 and R.sub.4 are hydrogen or methyl, provided that at least one of them is hydrogen, and process for the preparation thereof starting from resorcinol and phenylacetonitrile or a phenylacetonitrile derivative.

REFERENCES:
patent: 3147258 (1964-09-01), Re et al.
Chapman et al., "J. Chem. Soc.," vol. 123, pp. 404-409, (1923).
Baker et al., "J. Chem. Soc.," vol. 127, pp. 1981-1986, (1925).
Shriner et al., "J. Org. Chem.," vol. pp. 228-231, May, 1945.
Re et al., "Arnezmittle Forschuna," International Edition, vol. 10, pp. 800-802, (1960).

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