3-Substituted-2(1H)pyridon-6-carboxylic acids and process for pr

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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260295R, C07D21355

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active

040838501

ABSTRACT:
Novel compounds useful as hypotensive agents are presented having the general formula I ##STR1## wherein R.sub.1 represents a lower aliphatic acyl group, a straight or branched chain alkyl or alkenyl group or an aralkyl group of the general formula ##STR2## wherein R.sub.2 represents hydrogen, a lower alkyl group or a halogen atom. Furthermore, new therapeutic compositions of matter are also described incorporating the above novel 3-substituted-2(1H)pyridone-6-carboxylic acids (I) as an active ingredient with carriers and showing uses as hypotensive agents. These new compounds of the formula I are prepared either by reacting D-glucaro-.delta.-lactam or its salt with an acid anhydride or by reacting 3-hydroxy-2(1H)pyridone-6-carboxylic acid with an acyl anhydride or alkyl halide, aralkyl halide and an alkenyl halide.

REFERENCES:
patent: 3956337 (1976-05-01), Niwa et al.
Shukla et al., Chem. Abstracts, vol. 81 (1), item no. 1160m, July 8, 1974.

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