1-[[3,4-二氟-2-[(2-氟-4-碘苯基)氨基]苯基]羰基]-3-(哌啶-2-基)氮杂环丁-3-醇CAS号934662-91-6分子式C21H21F3IN3O2分子量531.31用途:考比替尼中间体