Invention Grant
- Patent Title: Crystal form A of 7-(cyclopropylmethyl)-1-(((cis )-4-hydroxy-4-methylcyclohexyl)methyl)-3-methyl-1H-purine-2,6-(3H,7H)-dione for treating liver diseases
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Application No.: US15771845Application Date: 2016-10-27
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Publication No.: US10399981B2Publication Date: 2019-09-03
- Inventor: Lingyun Wu , Chaofeng Long , Peng Zhang , Xiaoxin Chen , Li Zhang , Zhuowei Liu , Zheng Wang , Shuhui Chen , Lijuan Chen
- Applicant: GUANGDONG RAYNOVENT BIOTECH CO., LTD.
- Applicant Address: CN Guangdong
- Assignee: GUANGDONG RAYNOVENT BIOTECH CO., LTD.
- Current Assignee: GUANGDONG RAYNOVENT BIOTECH CO., LTD.
- Current Assignee Address: CN Guangdong
- Agency: Leason Ellis LLP
- Priority: CN201510719196 20151029
- International Application: PCT/CN2016/103487 WO 20161027
- International Announcement: WO2017/071607 WO 20170504
- Main IPC: A61K31/522
- IPC: A61K31/522 ; C07D473/04
Abstract:
The invention discloses a crystal form A of a compound (I) and a preparation method thereof, and further discloses an application of the crystal form A as a PDE2 or TNF-α inhibitor.
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