A new 4-(2-methylquinolin-4-ylmethyl)phenyl P1′ group for the β-amino hydroxamic acid derived TACE inhibitors

Abstract A new P1′ group for TACE inhibitors was identified by eliminating the oxygen atom in the linker of the original 4-(2-methylquinolin-4-ylmethoxy)phenyl P1′ group. Incorporation of this 4-(2-methylquinolin-4-ylmethyl)phenyl group onto different β-aminohydroxamic acid cores provided compound 18 , which demonstrated potent porcine TACE (p-TACE) and human whole blood activity, excellent PK properties, and good selectivity against a variety of MMPs.