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

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

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

6-(3-cyclopentylureido)-1,5-naphthyridine-3-carboxamide

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