4-(oxygen, sulfur or nitrogen substituted)-methyl 5-hydroxy-2(5H)-furanones as anti-inflammatory agents
US5037811A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 17, 1990 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Apr 17, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula ##STR1## in which R.sub.1 is H or alkyl of 1 to 20 carbons, CO--R.sub.1.sup.* CO--O--R.sub.1.sup.* CO--NH--R.sub.1.sup.* or PO(OR.sub.1.sup.*).sub.2 or PO(OR.sub.1.sup.*)R.sub.1.sup.* where R.sub.1.sup.* independently is H, alkyl of 1 to 20 carbons, phenyl, or substituted phenyl; X is O, S, SO--, SO.sub.2, NH--, or NR.sub.2 where R.sub.2 is phenyl, substituted phenyl or alkyl of 1 to 20 carbons, and Y is alkyl having at least 6 carbon atoms, arylalkyl, aryl, substituted aryl, substituted arylalkyl, alkenyl containing one or more olephinic bonds and at least 6 carbon atoms, CO--R.sub.3, CO--OR.sub.3, CONHR.sub.3, SO.sub.2 R.sub.3, SO.sub.2 NHR.sub.3 where R.sub.3 is aryl, substituted aryl, substituted arylalkyl, alkyl, alkenyl containing one or more olephinic bonds, further Y is (CH.sub.2).sub.n --O--R.sub.4, or (CH.sub.2).sub.n --O--(CH.sub.2).sub.m --O--R.sub.4, where n, and m, are integers and are independently 1 to 25 and R.sub.4 is phenyl, substituted phenyl or alkyl of one to 20 carbons, still further Y is PO(OH).sub.2, PO(OH)OR.sub.5, PO(OH)R.sub.5 PO(OR.sub.5).sub.2, where R.sub.5 is independently phenyl, substituted phenyl, alkyl or 1 to 20 carbons …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.