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. 12, 2021
Filed:
Nov. 08, 2018
Applicant:
Yonsung Fine Chemical Co., Ltd., Gyeonggi-do, KR;
Inventors:
Assignee:
YONSUNG FINE CHEMICAL CO., LTD., Hwaseong-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 407/12 (2006.01); C07D 307/12 (2006.01);
U.S. Cl.
CPC ...
C07D 307/12 (2013.01); C07D 407/12 (2013.01);
Abstract
The present invention relates to a process for preparing a compound of formula (6) which is an intermediate for the preparation of eribulin mesylate with high yields and high purity, and an intermediate therefor.