[Oxo-4-4H-[1]-benzopyran-8-yl]alcanoic acids, salts and derivatives, their manufacture and medicines containing them
US4783533A · kind A · utility
5Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1986 |
| Grant date | Nov 8, 1988 |
| Priority date | — |
| Expiry date | May 29, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D409/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention concerns [oxo-4-4H-[1]-benzopyran-8-yl]-alcanoic acids and their derivatives, their manufacture, represented by the formula. ##STR1## where AR is hydrogen, a phenyl radical which may or may not be substituted thenyl, furyl, naphthyl, a lower alkyl, cycloalkyl, aralkyl radical; B is a linear or branched lower alkyl radical, either saturated or ethylinically unsaturated; R.sub.1 is hydrogen or a phenyl radical; X is hydrogen or a lower alkyl or alkoxy radical and n=1, as well as salts, esters, aminoesters and amides. Compounds and their derivatives may be used as medicines, in particular in the control of tumors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.