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Last Updated: April 23, 2024

Details for Patent: 4,997,841

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Summary for Patent: 4,997,841

Title:	Indole derivatives
Abstract:	Compounds are disclosed of formula (I) ##STR1## wherein R.sub.1 represents H or C.sub.1-6 alkyl; R.sub.2 represents H or C.sub.1-6 alkyl; R.sub.3 represents H; R.sub.4 represents H or C.sub.1-3 alkyl; and pharmaceutically acceptable salts and solvates (for example hydrates thereof. The compounds are indicated as useful for the treatment of migraine, cluster headache, chronic paroxysmal hemicrania and headache associated with vascular disorders. Processes and intermediates for their preparation and pharmaceutical compositions containing them are also disclosed.
Inventor(s):	Oxford; Alexander W. (Royston, GB), Sutina; Darko (Arlesey, GB), Owen; Martin R. (Puckeridge, GB)
Assignee:	Glaxo Group Limited (GB2)
Application Number:	07/231,274
Patent Claim Types: see list of patent claims	Compound; Use; Composition; Dosage form;

Drugs Protected by US Patent 4,997,841

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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
>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: 4,997,841

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	8719167	Aug 13, 1987
United Kingdom	8814002	Jun 14, 1988
United Kingdom	8814481	Jun 17, 1988

International Family Members for US Patent 4,997,841

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	92057	⤷ Try a Trial
Australia	2069288	⤷ Try a Trial
Australia	611469	⤷ Try a Trial
Canada	1310968	⤷ Try a Trial
China	1022243	⤷ Try a Trial
China	1038807	⤷ Try a Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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