Orally Active MMP-1 Sparing α-Tetrahydropyranyl and α-Piperidinyl Sulfone Matrix Metalloproteinase (MMP) Inhibitors with Efficacy in Cancer, Arthritis, and Cardiovascular Disease

alpha-Sulfone-alpha-piperidine and alpha-tetrahydropyranyl hydroxamates were explored that are potent inhibitors of MMP's-2, -9, and -13 that spare MMP-1, with oral efficacy in inhibiting tumor growth in mice and left-ventricular hypertrophy in rats and in the bovine cartilage degradation ex vivo explant system. alpha-Piperidine 19v (SC-78080/SD-2590) was selected for development toward the initial indication of cancer, while alpha-piperidine and alpha-tetrahydropyranyl hydroxamates 19w (SC-77964) and 9l (SC-77774), respectively, were identified as backup compounds.