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:
Nov. 02, 2021
Filed:
Nov. 05, 2018
Applicant:
Suzhou Pengxu Pharmatech Co., Ltd., Suzhou, CN;
Inventors:
Peng Wang, Scotch Plains, NJ (US);
Pixu Li, Suzhou, CN;
Xiangyong Gu, Suzhou, CN;
Yadong Ge, Suzhou, CN;
Zhong Wang, Suzhou, CN;
Feng Gao, Suzhou, CN;
Qiangqiang Du, Suzhou, CN;
Assignee:
Suzhou PengXu Pharmatech Co. Ltd., JiangSu, CN;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D 471/02 (2006.01); C07D 471/04 (2006.01); C07D 487/04 (2006.01); C07D 213/75 (2006.01); C07D 403/12 (2006.01); C07F 5/02 (2006.01);
U.S. Cl.
CPC ...
C07D 487/04 (2013.01); C07D 213/75 (2013.01); C07D 403/12 (2013.01); C07F 5/025 (2013.01);
Abstract
The present invention relates to a method for preparing the compound of formula IV, compound of formula XI, and acalabrutinib, a new generation of bruton tyrosine kinase (BTK) inhibitor.