Disclosed are compounds having formulae I and II or pharmaceutically acceptable salts or hydrates thereof, a preparation method thereof and pharmaceutical compositions thereof. The compounds having formulae I and II possesses an isocitrate dehydrogenase 2 (IDH2) inhibitory activity and are capable of treating IDH2 mutation-induced cancers.
                            公开了具有式 I 和式 II 的化合物或其药学上可接受的盐或
水合物、其制备方法及其药物组合物。具有式 I 和式 II 的化合物具有
异柠檬酸脱氢酶 2(IDH2)抑制活性,能够治疗 IDH2 突变引起的癌症。