1-cyclopentyl-3-(7-(1-(2-morpholinoethyl)-1H-pyrazol-4-yl)-1,5-naphthyridin-2-yl)thiourea

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

1-cyclopentyl-3-(7-(morpholine-4-carbonyl)-1,5-naphthyridin-2-yl)urea

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

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