Details for Patent: 4,923,892
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Summary for Patent: 4,923,892
Title: | Tricyclic aromatic compounds |
Abstract: | The present invention relates to compounds of formula I ##STR1## or a salt, ester or amide thereof; wherein R.sup.1 is --CH.sub.2 --CH.sub.2 --, CH.sub.2 --O-- or --O--CH.sub.2 --; R.sup.2 and R.sup.3 are the same or different and are each hydrogen, C.sub.1-4 alkyl or taken together with the nitrogen comprise a nitrogen-containing heterocyclic ring having four to six ring members; R.sup.4 is a single bond or a C.sub.1-7 bivalent aliphatic hydrocarbon group and may be joined to the aromatic ring system at the 2,3,8 or 9 positions; n is 0 to 3, and their use as antihistamine and antiasthma agents. |
Inventor(s): | Lever, Jr.; O. William (Skillman, NJ), Leighton; Harry J. (Chapel Hill, NC) |
Assignee: | Burroughs Wellcome Co. (Research Triangle Park, NC) |
Application Number: | 07/356,884 |
Patent Claim Types: see list of patent claims | Use; Composition; Formulation; Compound; Dosage form; |
Drugs Protected by US Patent 4,923,892
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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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 | >Submissiondate |
Foreign Priority and PCT Information for Patent: 4,923,892
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
United Kingdom | 8520662 | Aug 17, 1985 |
International Family Members for US Patent 4,923,892
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