You're using a free limited version of DrugPatentWatch: Upgrade for Complete Access

Last Updated: November 21, 2024

Details for Patent: 4,188,390


✉ Email this page to a colleague

« Back to Dashboard


Summary for Patent: 4,188,390
Title: Antihypertensive 4-amino-2-[4-(1,4-benzodioxan-2-carbonyl) piperazin-1-yl or homopiperazin-1-yl]quinazolines
Abstract:Compounds having the formula ##STR1## and pharmaceutically acceptable salts thereof wherein R represents 6,7-di(lower alkoxy) or 6,7,8-tri(lower alkoxy); m is 1 or 2, X is --CHR.sup.1 -- or --CH.sub.2 CH.sub.2 --; each R.sup.1 and R.sup.0 may be the same or different and is hydrogen or lower alkyl; each of R.sup.2 and R.sup.3 is hydrogen, lower alkoxy, lower alkyl, halogen, lower alkanoyl, lower alkoxycarbonyl, --CONR.sup.4 R.sup.5 or --SO.sub.2 NR.sup.4 R.sup.5 wherein each of R.sup.4 and R.sup.5 is hydrogen or lower alkyl; processes for their preparation; and their use as regulators of the cardiovascular system, and particularly in the treatment of hypertension.
Inventor(s): Campbell; Simon F. (Deal, GB2)
Assignee: Pfizer Inc. (New York, NY)
Application Number:05/952,317
Patent Claim Types:
see list of patent claims
Compound; Composition;

Drugs Protected by US Patent 4,188,390

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: 4,188,390

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom46128/77Nov 05, 1977
Denmark4286/78Sep 27, 1978

International Family Members for US Patent 4,188,390

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 219562 ⤷  Sign Up
Argentina 223015 ⤷  Sign Up
Austria 365186 ⤷  Sign Up
Austria 366684 ⤷  Sign Up
Austria A28881 ⤷  Sign Up
Austria A784378 ⤷  Sign Up
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

Make Better Decisions: Try a trial or see plans & pricing

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.