(Oxo-4-4H-(1)-benzopyran-8-yl) alkanoic acids, salts and derivatives, their manufacture and medicines containing them
US4602034A · kind A · utility
16Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1984 |
| Grant date | Jul 22, 1986 |
| Priority date | — |
| Expiry date | Nov 6, 2004 |
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) alkanoic 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.