Crystal of pyrido[3, 4-d]pyrimidine derivative or solvate thereof
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, R
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | 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, R |
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