Heterocyclic compounds: 2-styryl-4H-1-benzopyran-4-ones
US5409952A · kind A · utility
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5Claims
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Key dates
| Filing date | Oct 27, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Oct 27, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/22
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula (I) ##STR1## in which: R.sub.1 represents a hydrogen atom, a lower alkyl group, a hydroxy group or a lower alkoxy group, PA0 R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.11 are as defined in the description. Medicaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.