Process for preparing certain pyrano[3,2-g]quinoline 2,8-dicarbo

Details Process for preparing certain pyrano[3,2-g]quinoline 2,8-dicarbo Process for preparing certain pyrano[3,2-g]quinoline 2,8-dicarbo

1980-12-02

1982-05-04

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546 89, 546156, C07D49112, C07D21556

Patent

active

043283411

ABSTRACT:
There is described a process for the production of a 1,4-dihydro-4-oxo-quinoline-2-carboxylic acid, or a salt, ester or amide thereof, which comprises cyclization of a corresponding 2-aminobenzoyl pyruvic acid or an ester thereof, and if desired or necessary converting the resulting product to an appropriate salt, ester or amide thereof, or vice versa.

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