Title:
CRYSTAL FORM OF PYRIDAZINE DERIVATIVE FREE BASE, AND PREPARATION METHOD THEREFOR AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/017494
Kind Code:
A1
Abstract:
The present invention relates to a crystal form of a pyridazine derivative free base and a preparation method therefor and the use thereof. Specifically, the present invention relates to a compound as represented by general formula (I), a crystal form thereof, a preparation method therefor, a pharmaceutical composition containing a therapeutically effective amount of the compound or a crystal form thereof, and the use thereof in the preparation of TYK2 inhibitor drugs.
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Inventors:
DU JUNFENG (CN)
GUO LINSONG (CN)
GUO LINSONG (CN)
Application Number:
PCT/CN2021/108103
Publication Date:
January 27, 2022
Filing Date:
July 23, 2021
Export Citation:
Assignee:
SHANGHAI HANSOH BIOMEDICAL CO LTD (CN)
JIANGSU HANSOH PHARMACEUTICAL GROUP CO LTD (CN)
JIANGSU HANSOH PHARMACEUTICAL GROUP CO LTD (CN)
International Classes:
C07D403/12; A61K31/50; A61K31/501; A61K31/506; A61K31/513; A61K31/5377; A61P29/00; C07D237/24; C07D401/12; C07D401/14
Domestic Patent References:
| WO2020156311A1 | 2020-08-06 |
Foreign References:
| CN111909140A | 2020-11-10 | |||
| CN104884454A | 2015-09-02 | |||
| CN110475774A | 2019-11-19 |
Attorney, Agent or Firm:
GE CHENG & CO., LTD (CN)
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