Anthranilate sulfonamide hydroxamate TACE inhibitors. Part 2: SAR of the acetylenic P1′ group

Abstract

The SAR of a series of potent sulfonamide hydroxamate TACE inhibitors bearing novel acetylenic P1′ groups was explored. In particular, compound 4t bearing a butynyloxy P1′ moiety has excellent in vitro potency against isolated TACE enzyme and in cells, good selectivity over MMP-1 and oral activity in an in vivo model of TNF-α production.