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.:
Date of Patent:
Nov. 14, 1995
Filed:
Feb. 02, 1994
Applicant:
Inventors:
Assignee:
Takeda Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07D / ;
U.S. Cl.
CPC ...
5142295 ; 544 73 ; 544 99 ;
Abstract
A compound represented by the formula ##STR1## wherein X is hydrogen or a substituent; R.sup.1 is an optionally substituted hydrocarbon residue; R.sup.2 and R.sup.3 are respectively hydrogen or a substituent; and ----- shows a single bond or a double bond, or a pharmacologically acceptable acid addition salt thereof, has an analgesic action and is useful as a medicine.