Dihydrofuro[3,4-b]quinolin-1-one compounds
US6548515B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Apr 15, 2003 |
| Priority date | — |
| Expiry date | Apr 27, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to compound of formula (I): wherein:<CUSTOM-CHARACTER FILE="US06548515-20030415-P00900.TIF" ALT="custom character" HE="20" WI="20" ID="CUSTOM-CHARACTER-00001"/> represents a single or double bond,R0 represents hydrogen or hydroxy or alkoxy,R1 and R2, which are identical or different, each represents hydrogen or halogen or alkyl, alkoxy, hydroxy, polyhaloalkyl, nitro or optionally substituted amino or  wherein m represents an integer such that 1≦m≦4, or form together with the carbon atoms carrying them an aromatic or non-aromatic, mono- or bi-cyclic group having from 5 to 12 ring members and optionally containing 1 or 2 hetero atoms selected from O, S and N,R3 represents hydrogen or aryl, heteroaryl, cycloalkyl, optionally substituted alkyl or a group of formula COR7 wherein R7 represents aryl, optionally substituted alkyl, optionally substituted amino or OR10 wherein R10 represents aryl or optionally substituted alkyl,X represents oxygen or sulphur or —CH2— or —CH2—CH2—,Ar represents aryl, heteroaryl or arylalkyl,its optical isomers, its hydrates, solvates, and also its addition salts with a pharmaceutically acceptable…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.