1-(7-bromo-1,5-naphthyridin-2-yl)-3-(1-methylcyclopentyl)urea

1-cyclopentyl-3-(7-(4-hydroxy-3-methoxyphenyl)-1,5-naphthyridin-2-yl)urea

1-cyclopentyl-3-(7-(1-(piperidin-4-yl)-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)urea

1-cyclopentyl-3-(7-(1-(2-(4-(methylsulfonyl)piperidin-1-yl)ethyl)-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)urea

1-cyclopentyl-3-(7-(3-(hydroxymethyl)-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)urea