The present invention relates to an inhibitor of cyclin-dependent kinase CDK9, having a structure of formula (I). The present invention also provides a method of treating a cancer or a precancerous condition related to CDK9 activity with the inhibitor and a use of the same.
[EN] POLYMORPH OF CDK9 INHIBITOR AND PREPARATION METHOD FOR POLYMORPH AND USE THEREOF<br/>[FR] POLYMORPHE D'UN INHIBITEUR DE CDK9, PROCÉDÉ DE PRÉPARATION DU POLYMORPHE ET UTILISATION ASSOCIÉE<br/>[ZH] CDK9抑制剂的多晶型物及其制法和用途