Heterocyclic-ring condensed benzothiazine compound
US6583138B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2001 |
| Grant date | Jun 24, 2003 |
| Priority date | — |
| Expiry date | Jan 4, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D513/04
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention provides a novel heterocyclic ring condensed benzothiazine compound which is effective for prevention or remedy of disease, in which histamine, leukotriene and the like participate. The heterocyclic ring condensed benzothiazine compound of the present invention or a pharmacologically acceptable salt thereof is effective for prevention or remedy of disease, in which a chemical mediator, such as histamine, leukotriene and the like, participate, for example, asthma, allergic coryza, atopic dermatitis, hives, hay fever, gastrointestinal allergy, food allergy and the like. Further, the heterocyclic ring condensed benzothiazine compound of the present invention, its pharmacologically acceptable salt or hydrates thereof is represented by the following formula: In the formula, the ring Het represents an unsaturated heterocyclic ring; R1 and R2 are the same as or different from each other, and each represents halogen atom, a lower alkyl group that may be substituted with a halogen atom, a lower alkoxy group that may be substituted with a halogen atom, a lower alkyl lower alkoxy group, cyano group; D represents a lower alkylene group and the like that may have a substituent; Q …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.