Benzospiroalkene heterocyclic compounds
US5436261A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D495/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of formula (I): ##STR1## in which: X represents --CH.sub.2 --, --(CH.sub.2).sub.2 --, --CH.dbd.CH--, --O--CH.sub.2 --, --S--CH.sub.2 --, --SO--CH.sub.2 -- or --SO.sub.2 --CH.sub.2 --, PA0 Y represents oxygen or sulfur or --NR.sub.6 --, PA0 R.sub.1 represents hydrogen or linear or branched (C.sub.1 -C.sub.6) alkyl, PA0 R.sub.2 represents hydrogen or halogen, linear or branched (C.sub.1 -C.sub.6) alkyl, (substituted or unsubstituted), hydroxyl, linear or branched (C.sub.1 -C.sub.6) alkoxy or linear or branched (C.sub.1 -C.sub.6) alkylthio, PA0 R.sub.3 represents hydrogen or halogen, linear or branched (C.sub.1 -C.sub.6) alkyl (substituted or unsubstituted), hydroxyl, linear or branched (C.sub.1 -C.sub.6) alkoxy or linear or branched (C.sub.1 -C.sub.6)alkylthio, PA0 R.sub.4 represents hydrogen (on condition that, in this case, R.sub.1 represents hydrogen), halogen, linear or branched (C.sub.1 -C.sub.6) alkyl (substituted or unsubstituted) or hydroxyl, or alternatively PA0 R.sub.1 and R.sub.2, R.sub.2 and R.sub.3, R.sub.3 and R.sub.4 or R.sub.4 and X, together with the carbon atoms which bear them, form a benzene ring, on condition that, in the case where R.sub.1 and R.sub.2 …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.