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US 12,617,766 B2Granted
Crystal form of thiophene derivative and preparation method therefor
AssigneeTonghua Dongbao Pharmaceutical Co., Ltd.
InventorsYang Zhang, Wentao Wu, Zhixiang Li, Wenyuan Zhu
Life of this patent
Estimating the term…
Abstract
Provided are a crystal form of a compound represented by formula (I) and a preparation method therefor.
Claims20
A crystal form C of a compound of formula (I), wherein the crystal form C has an X-ray powder diffraction pattern comprising characteristic diffraction peaks at the following 2θ angles:
- 13.20±0.20°, 15.26±0.20°, 18.08±0.20°, 21.99±0.20°, 25.07=0.20°, 25.38±0.20°, 26.66±0.20°, and 30.70=0.20°,
A crystal form E of a compound of formula (I), wherein the crystal form E has an X-ray powder diffraction pattern comprising characteristic diffraction peaks at the following 2θ angles:
- 9.11±0.20°, 12.43=0.20°, 13.28=0.20°, 15.34±0.20°, 18.16±0.20°, 22.06=0.20°, 23.15±0.20°, and 25.14±0.20°,
Dependencies are inferred from the claim text.