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:
Aug. 15, 1989
Filed:
Dec. 22, 1987
Shinji Terao, Osaka, JP;
Yoshitaka Maki, Highland Park, IL (US);
Takeda Chemical Industries, Ltd., Osaka, JP;
Abstract
A compound of the formula ##STR1## wherein R is a lower alkyl group, R.sup.0 is hydrogen or an acyl group, R.sup.1 and R.sup.2 are lower alkyl groups which may optionally be substituted or wherein R.sup.1 and R.sup.2 are combined to form a butadienylene group which may optionally be substituted, R.sup.3 and R.sup.4 are hydrogen or alkyl groups which may optionally be substituted or wherein R.sup.3 and R.sup.4 are combined to form a polymethylene group, and R.sup.5 is a lower alkyl, aromatic or heterocyclic group which may optionally be substituted or a pharmaceutically acceptable salt thereof, exerts cardiovascular system improving action and antiallergic action and can be used as pharmaceutics, e.g. antithromotics, antiallergic agents etc.