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Details for Patent: 4,474,787
Summary for Patent: 4,474,787
Title: | 7,6 Dioxo-4H,6H-pyrano[3,2-g]quinoline dicarboxylic acids and anti-allergic use thereof |
Abstract: | There are described compounds of formula I ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --COCH.dbd.CE--O--, and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, hydroxy, alkyl, halogen, alkenyl, alkoxy, or --NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2, which are the same or different, are each hydrogen or alkyl, Rg is hydrogen, alkyl, alkenyl or phenyl-alkyl, and E is --COOH, a 5-tetrazolyl group or an (N-tetrazol-5-yl) carboxamido group, and pharmaceutically acceptable derivatives thereof. There are also described processes for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing the compounds. |
Inventor(s): | Cairns; Hugh (Loughborough, GB2), Cox; David (Loughborough, GB2) |
Assignee: | Fisons Limited (GB2) |
Application Number: | 06/344,982 |
Patent Claim Types: see list of patent claims | Compound; Use; Composition; Dosage form; |
Drugs Protected by US Patent 4,474,787
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Patent Submitted |
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Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Patent Submitted |
Foreign Priority and PCT Information for Patent: 4,474,787
International Family Members for US Patent 4,474,787
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Finland | 781346 | ➤ Sign Up | |||
Spain | 8707222 | ➤ Sign Up | |||
Spain | 556218 | ➤ Sign Up | |||
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