A compound selected from 4-fluoro-3-(2-{[2-(3-fluoro(2-pyridyl))-2-methylpropyl]amino}pyrimidin-5-yl)benzamide; 4-fluoro-3-[2-({[(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]benzamide; 4-fluoro-3-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]benzamide; {4-fluoro-3-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]phenyl}-N-methylcarboxamide; {4-fluoro-3-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]phenyl}-N-methylcarboxamide; 4-fluoro-3-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-2-hydroxybenzamide; 3-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-4-hydroxy-N-methylbenzamide; 4-[2-({[(3-fluoro-2-pyridyl)cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 4-[2-({[3-fluoro-1-(3-f!uoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 4-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 1-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyrazole-4-carboxamide; 1-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyrazole-4-carboxamide; 1-(2-((3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-1H-pyrrole-3-carboxamide; 1-(2-((( trans)-3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-1H-pyrrole-3-carboxam ide; 2-[2-({[(3-fluoro-2-pyridyl)cyclobutyl]methyl}amino)pyrimidin-5-yl]-1,3-thiazole-5-carboxamide; 2-(2-(2-((1-(3-chloropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)thiazol-5-yl)acetamide; and 2-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)thiazole-5-carboxamide; or a pharmaceutically acceptable salt thereof. 4-fluoro-3-(2-{[2-(3-fluoro(2-pyridyl))-2-methylpropyl]amino}pyrimidin-5-yl)benzamide; 4-fluoro-3-[2-({[(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]benzamide; 4-fluoro-3-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]benzamide; {4-fluoro-3-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]phenyl}-N-methylcarboxamide; {4-fluoro-3-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]phenyl}-N-methylcarboxamide; 4-fluoro-3-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-2-hydroxybenzamide; 3-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-4-hydroxy-N-methylbenzamide; 4-[2-({[(3-fluoro-2-pyridyl)cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 4-[2-({[3-fluoro-1-(3-f!uoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 4-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyridine-2-carboxamide; 1-[2-({[3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyrazole-4-carboxamide; 1-[2-({[ trans -3-fluoro-1-(3-fluoro(2-pyridyl))cyclobutyl]methyl}amino)pyrimidin-5-yl]pyrazole-4-carboxamide; 1-(2-((3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-1H-pyrrole-3-carboxamide; 1-(2-((( trans)-3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)-1H-pyrrole-3-carboxam ide; 2-[2-({[(3-fluoro-2-pyridyl)cyclobutyl]methyl}amino)pyrimidin-5-yl]-1,3-thiazole-5-carboxamide; 2-(2-(2-((1-(3-chloropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)thiazol-5-yl)acetamide; and 2-(2-(( trans -3-fluoro-1-(3-fluoropyridin-2-yl)cyclobutyl)methylamino)pyrimidin-5-yl)thiazole-5-carboxamide;