Abstract: This invention provides novel compounds, and pharmaceutically acceptable derivatives thereof, that are useful as caspase inhibitors. These compounds have the general formula I: where R1, R2, and R3 are as described herein, Ring A contains zero to two double bonds, each X is independently selected from nitrogen or carbon, at least one X in Ring A is a nitrogen, Ring A is optionally substituted as described, and may be fused to a saturated or unsaturated five to seven membered ring containing zero to three heteroatoms, and provided that when X3 is a carbon, a substituent on X3 is attached by an atom other than nitrogen.

Abstract: The present invention relates to pyrazine and pyridine compounds useful as inhibitors of ATR protein kinase. The invention also relates to pharmaceutically acceptable compositions comprising the compounds of this invention; methods of treating various diseases, disorders, and conditions using the compounds of this invention; processes for preparing the compounds of this invention; intermediates for the preparation of the compounds of this invention; and methods of using the compounds in in vitro applications, such as the study of kinases in biological and pathological phenomena; the study of intracellular signal transduction pathways mediated by such kinases; and the comparative evaluation of new kinase inhibitors. The compounds of this invention have formula I: wherein the variables are as defined herein.

Abstract: This invention provides novel compounds, and pharmaceutically acceptable derivatives thereof, that are useful as caspase inhibitors. These compounds have the general formula I: where R1, R2, and R3 are as described herein, Ring A contains zero to two double bonds, each X is independently selected from nitrogen or carbon, at least one X in Ring A is a nitrogen, Ring A is optionally substituted as described, and may be fused to a saturated or unsaturated five to seven membered ring containing zero to three heteroatoms, and provided that when X3 is a carbon, a substituent on X3 is attached by an atom other than nitrogen.

Abstract: The present invention relates to drug discovery methods, particularly methods for assaying compounds for activity as Aurora kinase inhibitors. This invention also relates to a pharmacophore describing compounds that are able to promote a conformational change in the protein AuroraB and whose binding constant for the two-step process is given as Ki*. Finally, this invention also relates to compounds having the features of the pharmacophore.

Abstract: This invention provides novel compounds, and pharmaceutically acceptable derivatives thereof, that are useful as caspase inhibitors. These compounds have the general formula I: where R1, R2, and R3 are as described herein, Ring A contains zero to two double bonds, each X is independently selected from nitrogen or carbon, at least one X in Ring A is a nitrogen, Ring A is optionally substituted as described, and may be fused to a saturated or unsaturated five to seven membered ring containing zero to three heteroatoms, and provided that when X3 is a carbon, a substituent on X3 is attached by an atom other than nitrogen.