Fluoro coumarins as antilymphoedema agents
US4749798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1985 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | Dec 13, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/18
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A compound of the formula ##STR1## wherein hydrogen, fluorine, chlorine or bromine; B is fluorine, or when A is fluorine B may be hydrogen; PA1 R is hydrogen, C.sub.1 -C.sub.8 branched or unbranched alkyl, CH.sub.2 BR, CH.sub.2 Cl or substituted or unsubstituted phenyl; PA1 X is hydrogen, chlorine or bromine; PA1 one of R.sub.1 and R.sub.2 is hydrogen and the other is hydroxy or C.sub.1 -C.sub.7 branched or unbranched alkoxy unsubstituted or substituted by a dialkyl amino group, or R.sub.1 and R.sub.2, taken together with the carbon atom to which they are linked, form the group ##STR2## with the proviso that, when R and X are both hydrogen, ##STR3## is a ##STR4## group, and B is fluorine and A is hydrogen is useful as antilimphoedema agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.