A Modular PMDA Linker Enables Lysine-Selective Cyclization of Unprotected Peptides and Automated Macrocycle Assembly - Jiashu Wu; Wanglin Zhan; Xingxing Yang; Chengxi Li; Qiwei Yang; Zongbi Bao; Qilong Ren; Zhiguo Zhang (Journal of the American Chemical Society, 2026)