Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1976-06-28
1978-04-11
Rotman, Alan L.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
260295R, C07D21355
Patent
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.
Asaoka Hiroyasu
Inoue Shigeharu
Koeda Takemi
Niida Taro
Shibata Uichi
Meiji Seika Kaisha Ltd.
Rotman Alan L.
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