2-Piperazinyl-6,7-dimethoxyquinazolines
US4060615A · kind A · utility
97Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1976 |
| Grant date | Nov 29, 1977 |
| Priority date | — |
| Expiry date | Feb 18, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D405/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A series of novel 4-amino or 4-hydrazino-2-(substituted piperazinyl)-6,7-dimethoxyquinazolines is disclosed having antihypertensive and phosphodiesterase inhibiting properties. Piperazinyl substituents include cycloalkenylcarbonyl, cycloalkylcarbonyl, and methylcycloalkylcarbonyl. A representative embodiment of the invention is 4-amino-2-[4-(cyclopentylcarbonyl)-1-piperazinyl]-6,7-dimethoxyquinazoline .
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.