1,3-benzoxazine derivatives, their production and use
US5270308A · kind A · utility
10Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1991 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Sep 25, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F7/0812
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A new compound of the formula: ##STR1## wherein ##STR2## is an optionally substituted benzene ring; R.sup.1 is a carbocyclic or heterocyclic group which is linked to the 4-position of the 1,3-benzoxazine ring through a carbon-carbon bond, a hydrocarbon residue, etc.; and R.sup.2 and R.sup.3 are independently a hydrogen atom or an optionally substituted C.sub.1-6 alkyl group, etc., or a salt thereof is useful for treating and preventing heart, circulatory, respiratory and cerebral diseases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.