Novel fluorinated resorcinol ethers
US4670604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1985 |
| Grant date | Jun 2, 1987 |
| Priority date | — |
| Expiry date | Nov 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C205/37
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
4-Acylresorcinol ethers of the formula ##STR1## in which R.sub.1 is lower alkyl, R.sub.2 is fluorinated lower alkyl, R.sub.3 is hydrogen, lower alkoxy, trifluoromethyl or halogen, alk is an alkylene or hydroxyalkylene radical which is uninterrupted or interrupted by oxygen, one of the radicals R.sub.4, R.sub.5 and R.sub.7 is a group of the formula --NH--C(.dbd.O)--R.sub.8, a radical R.sub.4 or R.sub.5 which differs from this is a radical R.sub.9 and a radical R.sub.7 which differs from this is a radical R.sub.10, R.sub.6 is hydrogen, lower alkyl, trifluoromethyl, halogen, carboxyl which is free, esterified or amidated, cyano or lower alkanoyl, R.sub.8 is carboxyl which is free, esterified or amidated or 5-tetrazolyl, R.sub.9 is hydrogen, lower alkyl, lower alkoxy, halogen or trifluoromethyl and R.sub.10 is hydrogen, lower alkyl, lower alkoxy, halogen, trifluoromethyl, cyano or carboxyl which is free, esterified or amidated, and their salts have antiallergic and antiinflammatory properties. They are prepared, for example, by reacting compounds of the formulae ##STR2## in which one of the radicals X.sub.5 and X.sub.6 is hydroxyl which is free or in salt form and the other is an alkox…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.