4-(4-Pyridinyl)isatoic anhydride

Details 4-(4-Pyridinyl)isatoic anhydride 4-(4-Pyridinyl)isatoic anhydride

1983-08-15

1985-06-18

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

546156, 546161, C07D26526, C07D21520

Patent

active

045242038

ABSTRACT:
4-(4-Pyridinyl)isatoic anhydrides are prepared by reacting a 2-amino-4-(4-pyridinyl)benzoic acid, i.e., an acid, ester, or salt, with phosgene, preferably gaseous phosgene. The products are particularly useful in the preparation of antibacterial 1-alkyl-1,4-dihydro-4-oxo-7-pyridinyl-3-quinolinecarboxylic acids.

REFERENCES:
patent: 3838156 (1974-09-01), Brundage
Hardtmann et al., J. of Heterocyclic Chem., vol. 12, 1975.

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