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:
Sep. 17, 2024
Filed:
Jun. 17, 2019
Applicant:
Api Corporation, Fukuoka, JP;
Inventors:
Naoyuki Watanabe, Fukuoka, JP;
Tomoko Maeda, Kanagawa, JP;
Yasumasa Dekishima, Kanagawa, JP;
Hiroshi Kawabata, Kanagawa, JP;
Masaki Nagahama, Fukuoka, JP;
Assignee:
API CORPORATION, Fukuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N 9/00 (2006.01); C07D 239/42 (2006.01); C12N 9/04 (2006.01); C12P 17/12 (2006.01);
U.S. Cl.
CPC ...
C07D 239/42 (2013.01); C12N 9/0006 (2013.01); C12P 17/12 (2013.01); C12Y 101/01184 (2013.01);
Abstract
An object of the present invention is to provide a novel method capable of producing rosuvastatin calcium and intermediates therefor efficiently, inexpensively and with high purity. The present invention provides a method of efficiently producing rosuvastatin calcium and intermediates therefor having a high purity at an industrial scale, without using an extremely low temperature reaction or a special asymmetric catalyst.