1-(7-(4-acetylpiperazin-1-yl)-1,5-naphthyridin-2-yl)-3-cyclopentylurea

1-(7-(2H-1,2,3-triazol-4-yl)-1,5-naphthyridin-2-yl)-3-cyclopentylurea

1-cyclopentyl-3-(7-((2S,6R)-2,6-dimethylmorpholino)-1,5-naphthyridin-2-yl)urea

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

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