Details for Patent: 3,937,838

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Summary for Patent: 3,937,838

Title:	Orally active bronchospasmolytic compounds and their preparation
Abstract:	Novel compounds are disclosed having useful activity as bronchodilators of improved longevity of action and reduced incidence of side effects. These compounds are described by the formula: ##EQU1## wherein R.sub.1 is a member of the class consisting of tertiary butyl and cyclobutyl, and R.sub.2 is a hydrogen or 2 to 5 carbon atom acyl radical, and pharmaceutically acceptable salts thereof. The activity of these compounds is compared to previously known bronchodilators such as 1-(3', 5'-dihydroxyphenyl)-2-(isopropylamino)-ethanol, having the common name orciprenaline, and 1-(3', 4'-dihydroxyphenyl-2-isoproplyamino-ethanol, having the common name isoprenaline.
Inventor(s):	Wetterlin; Kjell Ingvar Leopold (Sandby, SW), Svensson; Leif Ake (Lund, SW)
Assignee:	Aktiebolaget Draco (Lund, SW)
Application Number:	05/372,497
Patent Claim Types: see list of patent claims	Use; Composition; Compound;

Drugs Protected by US Patent 3,937,838

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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: 3,937,838

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
	14182/66	Oct 19, 1966

International Family Members for US Patent 3,937,838

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	286964	⤷ Sign Up
Austria	287678	⤷ Sign Up
Austria	287679	⤷ Sign Up
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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