Crystal of pyrazolo[3,4-d]pyrimidine

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United States of America

PATENT NO 12215109
APP PUB NO 20210332056A1
SERIAL NO

17271424

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Abstract

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An object of the invention is to provide a crystal of (R)-1-(1-acryloylpiperidin-3-yl)-4-amino-N-(4-(2-(dimethylamino)-2-oxoethyl)-2,3-dimethylphenyl)-1H-pyrazolo[3,4-d]pyrimidine-3-carboxamide which is excellent in stability and preferable from the viewpoint of manufacturing and formulation. The present invention provides a crystal having an X-ray powder diffraction spectrum having characteristic peaks at diffraction angles (2θ±0.2°) of 6.0°, 7.7°, 8.9°, 10.6°, 12.1°, 13.1°, 14.0°, 14.7°, 15.5°, 15.8°, 16.8°, 17.7°, 18.1°, 18.4°, 19.4°, 23.4°, 24.1°, 24.7°, 25.1° and 25.7°.

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Patent Owner(s)

  • TAIHO PHARMACEUTICAL CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Oshiumi, Hiromi Tokushima, JP 6 24
Shimamura, Tadashi Tsukuba, JP 22 172

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