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. 30, 2021
Filed:
Jun. 03, 2019
Sichuan Kelun-biotech Biopharmaceutical Co., Ltd., Chengdu, CN;
Qiang Tian, Chengdu, CN;
Tianming Wang, Chengdu, CN;
Wei Liu, Chengdu, CN;
Baolei Zhang, Chengdu, CN;
Mingliang Zhao, Chengdu, CN;
Yufeng Liang, Chengdu, CN;
Jiaqiang Cai, Chengdu, CN;
Lichun Wang, Chengdu, CN;
Jingyi Wang, Chengdu, CN;
SICHUAN KELUN-BIOTECH BIOPHARMACEUTICAL CO., LTD., Sichuan, CN;
Abstract
The present invention relates to compounds represented by formula (I) and formula (II) and a chiral synthesis and chiral isolation method therefor, further relating to a salt and crystal form of the compound represented by formula (I), a preparation method therefor, a pharmaceutical composition comprising the same, and use thereof in the preparation of a medicament used for the treatment of a viral infectious disease such as hepatitis B.