![Crystal of pyrido[3,4-d]pyrimidine derivative or solvate thereof](/docs/US/2022-03-01/US11261182B2/abs.jpg.600x600.jpg)
- Patent Title: Crystal of pyrido[3,4-d]pyrimidine derivative or solvate thereof
-
Application No.: US16463501Application Date: 2017-11-27
-
Publication No.: US11261182B2Publication Date: 2022-03-01
- Inventor: Hidetoshi Miyamoto , Tsuyoshi Mizuno , Gen Unoki , Yuki Miyazawa , Naoki Yajima
- Applicant: Teijin Pharma Limited
- Applicant Address: JP Tokyo
- Assignee: Teijin Pharma Limited
- Current Assignee: Teijin Pharma Limited
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JPJP2016-229973 20161128
- International Application: PCT/JP2017/042437 WO 20171127
- International Announcement: WO2018/097295 WO 20180531
- Main IPC: C07D471/04
- IPC: C07D471/04
![Crystal of pyrido[3,4-d]pyrimidine derivative or solvate thereof](/abs-image/US/2022/03/01/US11261182B2/abs.jpg.150x150.jpg)
Abstract:
Provided is a crystal of a novel pyrido[3, 4-d]pyrimidine derivative having excellent CDK 4/6 inhibitory activity. A crystal of a compound represented by formula (I). In the formula, R1 represents a hydrogen atom or a C1-3 alkyl group; R2 represents a hydrogen atom or an oxo group; L represents a single bond or a C1-3 alkylene group; and X represents CH or N.
Public/Granted literature
- US20210276997A1 CRYSTAL OF PYRIDO[3,4-D]PYRIMIDINE DERIVATIVE OR SOLVATE THEREOF Public/Granted day:2021-09-09
Information query
