Tricyclic quinazoline derivatives
US4377580A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 1980 |
| Grant date | Mar 22, 1983 |
| Priority date | — |
| Expiry date | Nov 25, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Quinazoline derivatives of the formulae: ##STR1## wherein A.sup.1 is ##STR2## A.sup.2 is ##STR3## R.sup.1 is hydrogen, carboxy or esterified carboxy, R.sub.a.sup.1 and R.sub.b.sup.1 are esterified carboxy, PA0 R.sup.2 and R.sup.3 are hydrogen, alkyl, halogen, nitro, amino, alkoxy, aryloxy, alkylthio, alkylpiperazinyl, acylamino or dialkylamino which may be substituted with hydroxy, PA0 R.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy, dialkylamino or 2,2-dialkoxycarbonylvinylamino PA0 R.sub.a.sup.4 is hydrogen, alkyl, hydroxy, alkoxy, alkenyloxy or dialkylamino, PA0 R.sup.5 is alkyl or alkenyl, and PA0 R.sup.6 is carboxy or esterified carboxy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.