Flavene and thioflavene derivates, processes for their manufacture, pharmaceutical preparations that contain such compounds, and the use of the latter
US4935441A · kind A · utility
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15Claims
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Key dates
| Filing date | May 28, 1986 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | May 28, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D311/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Compounds of the formula I ##STR1## wherein rings A and B are each unsubstituted or substituted; Y is oxygen, sulfur, sulfinyl or sulfonyl; one of the symbols Z.sub.1 and Z.sub.2 is halogen and the other formyl; and pharmaceutically acceptable salts of such compounds that contain a salt-forming group are useful for the treatment of diseases of the respiratory tract and of liver diseases. They are prepared by methods known per se.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.