1-(7-((1H-pyrazol-4-yl)amino)-1,5-naphthyridin-2-yl)-3-(4-phenylbutyl)urea

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

N-((7-(1-methyl-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)carbamothioyl)benzamide

1-(2-methylpentan-2-yl)-3-(7-(1-(3-morpholinopropyl)-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)urea

(R)-1-(7-(1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)-3-(1-cyclopentylethyl)urea