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:
Dec. 30, 2014
Filed:
Apr. 16, 2014
Applicant:
Enanta Pharmaceuticals, Inc., Watertown, MA (US);
Inventors:
Datong Tang, Newton, MA (US);
Guoyou Xu, Framingham, MA (US);
Xiaowen Peng, Cambridge, MA (US);
Lu Ying, Shanghai, CN;
Ce Wang, Beijing, CN;
Hui Cao, Belmont, MA (US);
Jiang Long, Wayland, MA (US);
In Jong Kim, Lexington, MA (US);
Guoqiang Wang, Belmont, MA (US);
Yao-Ling Qiu, Andover, MA (US);
Yat Sun Or, Watertown, MA (US);
Assignee:
Enanta Pharmaceuticals, Inc., Watertown, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 403/14 (2006.01);
U.S. Cl.
CPC ...
C07D 403/14 (2013.01);
Abstract
The present invention relates to processes and intermediates for the preparation of novel benzimidazole derivatives, especially in the synthesis of hepatitis C virus NS5A inhibitors. In particular, the present invention relates to processes and intermediates for the preparation of compounds of formulae (I-a):