Crystal form and salt form of pyridoimidazole compound and preparation method therefor

US11535613B2 · kind B2 · utility

Assignee

• GUANGDONG RAYNOVENT BIOTECH CO., LTD. · CN

Inventors

• Jian Xiong · Shanghai, CN
• Xiaoxin Chen · Cupertino, US
• Jingjing Wang · Shanghai, CN
• Zhuowei Liu · 流花街道, CN
• Kevin X. Chen · Edison, US
• Chengwu Liu · 流花街道, CN
• Cheng Xie · Shanghai, CN
• Chaofeng Long · Tangxia, CN
• Peng Li · New York, US
• Jian Li · Shanghai, CN
• Shuhui CHEN · Shanghai, CN

Key dates

• Filing date: Mar 5, 2019
• Grant date: Dec 27, 2022
• Expiry date: Nov 20, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/13
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

Disclosed are a crystal form and a salt form of a pyrazolopridine compound, and a preparation method therefor. Further included is the use of the crystal form in preparing anti-influenza virus drugs.