[EN] PYRIDINE OR PYRIMIDINE DERIVATIVE, AND PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] DÉRIVÉ DE PYRIDINE OU DE PYRIMIDINE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 吡啶或嘧啶类衍生物及其制备方法和用途
Compounds of the present invention and pharmaceutically acceptable compositions thereof, are useful as modulators of ATP-Binding Cassette (“ABC”) transporters or fragments thereof, including Cystic Fibrosis Transmembrane Conductance Regulator (“CFTR”). The present invention also relates to methods of treating ABC transporter mediated diseases using compounds of the present invention.