Triene compounds having a chromene structure
US4975454A · kind A · utility
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8Claims
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Key dates
| Filing date | Apr 11, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Apr 11, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P35/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of general formula (I): ##STR1## in which: R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, denote a hydrogen atom, a halogen atom or a lower alkyl, lower alkenyl, lower alkyloxy or lower alkenyloxy group, optionally substituted with one or more halogen atoms, PA0 R.sub.5 denotes a carboxyl, (lower alkyloxy)carbonyl, (lower alkenyloxy)carbonyl or (lower alkynyloxy)-carbonyl, PA0 their isomers, stereoisomers and diastereoisomers, and also their addition salts with a pharmaceutically acceptable base. Medicinal products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.