Substituted N-arylmethylamino derivatives of cyclobutene-3,4-diones
US5846999A · kind A · utility
1Cited by
16References
25Claims
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Key dates
| Filing date | Jul 7, 1997 |
| Grant date | Dec 8, 1998 |
| Priority date | — |
| Expiry date | Jul 7, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2601/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The compounds of the formula: ##STR1## wherein R.sub.1 is straight chain alkyl, branched chain alkyl, cycloalkyl, hydroxyalkyl, fluoroalkyl or polyfluoroalkyl; R.sub.2 and R.sub.3 are, independently, hydrogen or an acyl substituent selected from the group consisting of formyl, alkanoyl, alkenoyl, alkoxycarbonyl, alkylsulfonyl, aroyl, arylalkenoyl, arylsulfonyl, arylalkanoyl or arylalkylsulfonyl; or a pharmaceutically acceptable salt thereof, relaxes smooth muscles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.