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:
Oct. 08, 2002
Filed:
Apr. 29, 2002
Applicant:
Inventors:
Tetsuo Okada, Sakai, JP;
Makoto Kakinuma, Kaizuka, JP;
Assignee:
Shionogi & Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
C07C / ;
Abstract
A process for preparing a compound having PGD antagonism represented by the formula (I), or a pharmaceutically acceptable salt or hydrate thereof, which process comprises reacting an amino alcohol of the formula (II) or its salt with a compound of the formula (III) or its reactive derivative, oxidizing the product with halo oxoacid in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyls, reacting the product with an ylide under the conditions for Wittig reaction, and optionally deprotecting the product.
Okada, Tetsuo. (2002). Process for preparing benzothiophenecarboxamide derivatives (U.S. Patent No. 6462241). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6462241
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile