Substituted hydroxy-anilino derivatives of cyclobutene-3,4-diones
US5840764A · kind A · utility
14Cited by
11References
13Claims
0Family size
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Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Jan 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The compound of the formula: ##STR1## wherein R.sup.1 is straight chain alkyl, branched chain alkyl, cycloalkyl, hydroxyalkyl, fluoroalkyl, or polyfluoroalkyl; and one of R.sup.2, R.sup.3 and R.sup.4 is hydroxyl and the other two are, independently, H, CN, halogen, alkyl or hydroxyl; or a pharmaceutically acceptable salt thereof, is useful as a smooth muscle relaxant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.