Abstract: Selective MMP-13 inhibitors are bicyclic pyrimidines of the Formula I or a pharmaceutically acceptable salt thereof, wherein R1 is hydrogen or alkyl; R2, R3, and R4 include hydrogen, halo, alkyl, C?C(CH2)m aryl, CO2 alkyl, CO2(CH2)m aryl, COHN alkyl, and CONH(CH2)m aryl; and X is O, S, SO, SO2, CH2, C?O, CHOH, NH, or NR5. A compound of Formula I, or a pharmaceutically acceptable salt thereof, is useful for treating cancer or arthritis.

Abstract: This invention relates to a compound which is [b]-fused bicyclic proline derivative, or a pharmaceutically acceptable salt thereof; a pharmaceutical composition comprising the compound or the salt thereof, and methods of treating diseases, including, but not limited to, methods of preventing or inhibiting joint cartilage damage and preventing or treating diseases characterized by joint cartilage damage, joint inflammation, or joint pain. The [b]-fused bicyclic proline derivatives are compounds of Formula I as described above. Diseases characterized by joint cartilage damage or joint pain include, for example, osteoarthritis and rheumatoid arthritis. Rheumatoid arthritis is also characterized by joint inflammation. This invention also relates to methods of synthesizing and preparing the [b]-fused bicyclic proline derivatives, or a pharmaceutically acceptable salt thereof.

Abstract: This invention relates to a combination of an allosteric inhibitor of matrix metalloproteinase-13, or a pharmaceutically acceptable salt thereof, and a ligand to an alpha-2-delta receptor, or a pharmaceutically acceptable salt thereof, a pharmaceutical composition comprising the combination, and a method of using the combination to treat a disease or disorder in a mammal suffering therefrom, wherein the disease or disorder is responsive to treatment in one aspect by an allosteric inhibitor of MMP-13 and in the same or a different aspect by a ligand to an alpha-2-delta receptor.

Abstract: Compounds are provided that bind allosterically to the catalytic domain of MMP-13 and comprise a hydrophobic group, first and second hydrogen bond acceptors and at least one, and preferably both, of a third hydrogen bond acceptor and a second hydrophobic group. Cartesian coordinates for centroids of the above features are defined in the specification. When the ligand binds to MMP-13, the first, second and third (when present) hydrogen bond acceptors bond respectively with Thr245, Thr 247 and Met 253, the first hydrophobic group locates within the S1? channel of MMP-13 and the second hydrophobic group (when present) is relatively open to solvent. The compounds specifically inhibit the matrix metalloproteinase-13 enzyme and thus are useful for treating diseases resulting from tissue breakdown, such as heart disease, multiple sclerosis, arthritis, atherosclerosis, and osteoporosis.