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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4916231 B1

PDFFull Text
Date of Patent:
Apr. 10, 1990

Filed:

Jul. 10, 1989

Alkenyltetrazole derivatives

Applicant:
Inventors:

Masayuki Narisada, Osaka, JP;

Mitsuaki Ohtani, Nara, JP;

Fumihiko Watanabe, Nara, JP;

Takaharu Matsuura, Hyogo, JP;

Sanji Hagishita, Nara, JP;

Kaoru Seno, Hyogo, JP;

Assignee:

Shionogi & Co., Ltd., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack

Primary Examiner:

David B Springer

Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
548252 ; 548253 ;
Abstract

Tetrazole derivatives represented by the formula: ##STR1## wherein R is naphthyl or phenyl optionally substituted by phenyl, lower alkyo, halogen, lower alkoxy, hydroxy or acetoxy; X is methylene, dimethylmethylene or oxygen; n is an integer of 0 or 1; and p and r each is an integer of 0 or 1 and q is an integer of 1 or 2 provided that p+q+r=2; or a tautomer in tetrazole ring and a pharmaceutically acceptable salt thereof, which are useful as TXA.sub.2 receptor antagonist.

Find Patent Forward Citations

Narisada, Masayuki. (1990). Alkenyltetrazole derivatives (U.S. Patent No. 4916231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4916231

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