US 12,358,913 B2
Crystal of diarylthiohydantoin compound
Chunli Shen, Shanghai (CN); Shenglin Chen, Shanghai (CN); Ting Wang, Shanghai (CN); Fei Liu, Jiangsu (CN); Xin Tian, Jiangsu (CN); Yuing Guo, Shanghai (CN); Lin Zhang, Shanghai (CN); and Jiahu Wu, Shanghai (CN)
Assigned to CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., Jiangsu (CN)
Appl. No. 17/427,496
Filed by CHIA TAI TIANQING PHARMACEUTICAL GROUP CO., LTD., Jiangsu (CN)
PCT Filed Jan. 22, 2020, PCT No. PCT/CN2020/073821
§ 371(c)(1), (2) Date Jul. 30, 2021,
PCT Pub. No. WO2020/156448, PCT Pub. Date Aug. 6, 2020.
Claims priority of application No. 201910104953.5 (CN), filed on Feb. 1, 2019.
Prior Publication US 2022/0009925 A1, Jan. 13, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C07D 471/04 (2006.01); A61P 35/00 (2006.01)
CPC C07D 471/04 (2013.01) [A61P 35/00 (2018.01); C07B 2200/13 (2013.01)] 9 Claims
 
1. A crystal of a compound of formula I,

OG Complex Work Unit Chemistry
wherein, in an X-ray powder diffraction pattern using Cu Kα radiation, diffraction peaks exist at 2θ of 13.47°±0.2°, 15.32°±0.2°, 15.98°±0.2°, 18.68°±0.2°, 23.11°±0.2° and 26.41°±0.2°.