4-Oxo-4H-pyrano[3,2-c]quinoline-2-carboxylic acids and salts the

Details 4-Oxo-4H-pyrano[3,2-c]quinoline-2-carboxylic acids and salts the 4-Oxo-4H-pyrano[3,2-c]quinoline-2-carboxylic acids and salts the

1975-09-23

1977-03-01

Daus, Donald G.

Drug, bio-affecting and body treating compositions

Antigen, epitope, or other immunospecific immunoeffector

Bacterium or component thereof or substance produced by said...

2602472R, 260287R, 260287CE, 260287CF, 260287C, 260287AN, 260289K, 260471A, 260578, C07D49104

Patent

active

040102700

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, alkyl of 1 to 4 carbon atoms, phenyl, hydroxyl, alkoxy of 1 to 3 carbon atoms, alkylmercapto of 1 to 3 carbon atoms, hydroxycarbonyl or ##STR2## where R.sub.3 and R.sub.4 are each alkyl of 1 to 4 carbon atoms or, together with each other and the nitrogen atom to which they are attached, morpholino, piperidino, methylpiperidino or phenyl-piperidino; or

REFERENCES:
patent: 3629290 (1971-12-01), Cairns et al.
Elliott et al., "J. Chem. Soc," 1961 pp. 2796-2800; Chem. Abst. 56:1437i.

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