Derivatives of oxazinobenzothiazine-6,6-dioxide
US4563452A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 8, 1983 |
| Grant date | Jan 7, 1986 |
| Priority date | — |
| Expiry date | Jun 8, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P29/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to new derivatives of oxazinobenzothiazine-6,6-dioxide, to a process for the production thereof and to the use thereof as medicaments. The new derivatives according to the present invention correspond to the general formula I: ##STR1## wherein: R represents a linear or branched lower C.sub.1 -C.sub.4 alkyl radical, in particular the methyl and ethyl radicals, PA0 X represents an oxygen atom or a sulphur atom, and PA0 Het represents a mono- or bicyclic unsaturated heterocycle containing a nitrogen heteroatom in the ortho position relative to the link between the said heterocycle and the nitrogen atom of the oxazine ring, the said heterocycle optionally containing one or two other additional heteroatoms selected from nitrogen, oxygen and sulphur, and also being able to be substituted by one or two methyl radicals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.