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. 12, 1985
Filed:
Apr. 16, 1984
Applicant:
Inventors:
Kikuo Igarashi, Hyogo, JP;
Tsunetoshi Honma, Nara, JP;
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
2602 / ; 549548 ; 549549 ; 549555 ; 560 17 ;
Abstract
New route to diltiazem hydrochloride of the formula: ##STR1## in which the starting cinnamyl alcohols are epoxidized by a special asymmetric synthesis followed by a series of stereospecific reactions; no optical resolution is required at any stage.
Igarashi, Kikuo. (1985). Process for production of diltiazem hydrochloride (U.S. Patent No. 4552695). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4552695
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile