report the development of Pd(II)-catalyzed C(sp3)–H arylation of Weinrebamides. Both the inductive effect and the potential bidentate coordination mode of the Weinrebamides pose a unique challenge for this reaction development. A pyridinesulfonic acid ligand is designed to accommodate the weak, neutral-coordinating property of Weinrebamides by preserving the cationic character of Pd center through zwitterionic