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:
Feb. 27, 2018
Filed:
Jun. 23, 2014
Applicant:
Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Taizhou, CN;
Inventors:
Bin Zhang, Taizhou, CN;
Yuanqiang Li, Taizhou, CN;
Daqing Che, Taizhou, CN;
Lingfeng Qian, Taizhou, CN;
Guoliang Zhu, Taizhou, CN;
Wenfa Ye, Taizhou, CN;
Assignee:
Zhejiang Jiuzhou Pharmaceutical Co., Ltd., Taizhou, Zhejiang, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 207/22 (2006.01); C07D 207/16 (2006.01);
U.S. Cl.
CPC ...
C07D 207/22 (2013.01); C07D 207/16 (2013.01); Y02P 20/55 (2015.11);
Abstract
The present invention relates to the field of medical synthesis, in particular to a preparation method for pyrrolidine-2-carboxylic acid derivatives. The present invention adopts the following technical solution: providing a compound having a structure of formula (E), wherein R is Ror R, Ris C-Can alkyl, benzyl, p-methoxybenzyl, or p-nitrobenzyl group, and Ris hydrogen; Ris a protecting group of the carboxyl group; and Pis a protecting group on nitrogen.