The present disclosure relates to methods useful for determining whether to treat cancer in a patient, and treating cancer in a patient, by administering a therapeutically effective amount of Compound 1 and/or tautomers thereof or a pharmaceutically acceptable salt or hydrate thereof.本揭示內容有關有用於確定是否治療患者之癌症之方法及治療患者之癌症之方法,係藉由投予治療有效量之化合物1及/或其互變異構物或其醫藥上可接受之鹽或水合物