6,7-asymmetrically disubstituted quinoxalinecarboxylic acid derivatives, addition salts thereof, and processes for the preparation of both
US6348461B1 · kind B1 · utility
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12Claims
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Key dates
| Filing date | Mar 1, 2000 |
| Grant date | Feb 19, 2002 |
| Priority date | — |
| Expiry date | Mar 1, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention provides 6,7-asymmetrically disubstituted quinoxalinecarboxylic acid compounds and their addition salts, and processes for preparing them, which have antagonism against excitatory amino acid receptors, in particular, an AMPA receptor. The 6,7-asymmetrically disubstituted quinoxalinecarboxylic acid compounds and their addition salts of the present invention are represented by formula (1) wherein Q, R, R1 and R2 are as described in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.