Patent ID: 8030318

Claim:
A compound, or pharmaceutically acceptable salt thereof, selected from the group consisting of: 4-[2-(5-Chloro-2-fluoro-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-nicotinamide; 4-[2-(5-Chloro-2-fluoro-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-methyl-nicotinamide; 4-[2-(5-Chloro-2-methylamino-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-methyl-nicotinamide; 4-[7-Amino-2-(5-Chloro-2-fluoro-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-methyl-nicotinamide; 4-[2-(5-Chloro-2-fluoro-phenyl)-7-(2-dimethylamino-ethylamino)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-methyl-nicotinamide; 4-[2-(5-Chloro-2-fluoro-phenyl)-7-(2-dimethylamino-ethylamino)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-(2-hydroxy-propyl)-nicotinamide; 4-[2-(5-Chloro-2-fluoro-phenyl)-7-(2-methoxy-ethylamino)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-methyl-nicotinamide; 4-[2-(5-Chloro-2-fluoro-phenyl)-7-(4-methoxy-benzylamino)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-cyclopropyl-nicotinamide; 4-[7-Amino-2-(5-Chloro-2-fluoro-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-cyclopropyl-nicotinamide; and 4-[7-Amino-2-(5-Chloro-2-fluoro-phenyl)-pyrido[2,3-d]pyrimidin-4-ylamino]-N-(2-hydroxy-propyl)-nicotinamide.