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:
Apr. 25, 2023
Filed:
Oct. 15, 2021
Applicant:
Nikang Therapeutics, Inc., Wilmington, DE (US);
Inventors:
Jiping Fu, Danville, CA (US);
Yan Lou, Dallas, TX (US);
Yigang He, Newark, DE (US);
Yuetao Shi, Changzhou, CN;
Peng Zhou, Suzhou Industrial Park, CN;
Xingxing Li, Changzhou, CN;
Assignee:
NiKang Therapeutics, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 253/30 (2006.01); C07C 29/143 (2006.01); C07C 45/27 (2006.01); C07C 45/66 (2006.01); C07C 67/307 (2006.01); C07C 29/00 (2006.01); C07C 45/00 (2006.01); C07C 67/343 (2006.01);
U.S. Cl.
CPC ...
C07C 253/30 (2013.01); C07C 29/00 (2013.01); C07C 29/143 (2013.01); C07C 45/002 (2013.01); C07C 45/27 (2013.01); C07C 45/66 (2013.01); C07C 67/307 (2013.01); C07C 67/343 (2013.01); C07C 2602/08 (2017.05); C07C 2603/10 (2017.05);
Abstract
Disclosed herein are processes for preparing certain intermediates useful in the synthesis of 3-fluoro-5-(((1S,2aR)-1,3,3,4,4-pentafluoro-2a-hydroxy-2,2a,3,4-tetrahydro-1H-cyclopenta[cd]inden-7-yl)oxy)benzonitrile or a pharmaceutically acceptable salt thereof.