abstract |
PROBLEM TO BE SOLVED: To provide 1-((R) -3- (4-amino-3- (4-phenoxyphenyl) -1H-pyrazolo [3,4-d] pyrimidin-1-yl) piperidin-1-yl) prop- Providing a new crystalline form of 2-en-1-one. With characteristic peaks at 5.2 ± 0.1 ° 2-theta, 10.2 ± 0.1 ° 2-theta, and 20.8 ± 0.1 ° 2-theta, A crystalline form having an X-ray powder diffraction (XRPD) pattern. [Selection] Figure 1 |