A compound of formula (I):
wherein all symbols have the same meanings as defined in the specification; a salt thereof, a solvate thereof, an N-oxide thereof, or a prodrug thereof, has a Btk inhibitory activity, and is useful as a method for preventing and/or treating a rheumatoid arthritis, an autoimmune disease, a B cell lymphoma of cancer, and the like.
式(I)的化合物:其中所有符号的定义与规范中的定义相同;其盐,溶剂化物,N-
氧化物或前药,具有Btk抑制活性,并且可用于预防和/或治疗类风湿性关节炎,自身免疫性疾病,B细胞淋巴瘤或癌症等方法。