Abstract: Described herein are compounds of Formula (I?), Formula (IA), Formulae (I)-(VII), pharmaceutically acceptable salts, solvates, hydrates, polymorphs, co-crystals, tautomers, stereoisomers, isotopically labeled derivatives, and prodrugs thereof. The invention also provides pharmaceutical compositions of the compounds for human and veterinary use. Compounds of the present invention are useful for inhibiting bacterial growth and therefore are useful in treating and/or preventing bacterial infections. Methods of using the compounds for treating and/or preventing a bacterial infection in a subject are also described.

Abstract: 6-Alkynylpyridines which are SMAC mimetics and are useful as medicaments for the treatment of diseases characterized by excessive or abnormal cell proliferation and associated conditions such as cancer. The following compounds are exemplary: methyl 5-[6-[[2-(methylamino)propanoyl]amino]-2-[2-(3-methylphenyl)ethynyl]pyridin-3-yl]-pyridine-3-carboxylate and 2-(methylamino)-N-[5-(2-methylimidazo[1,2-a]pyridin-3-yl)-6-[2-(1-methyl-2-oxoquinolin-6-yl)-ethynyl]pyridin-2-yl]propanamid.

Abstract: 5-alkynyl-pyridine of general formula (I) their use as SMAC mimetics, pharmaceutical compositions containing them, and their use as a medicaments for the treatment and/or prevention of diseases characterized by excessive or abnormal cell proliferation and associated conditions such as cancer. The groups R1 to R5 have the meanings given in the claims and in the specification.