tert-butyl 4-(4-(6-(3-cyclopentylureido)-1,5-naphthyridin-3-yl)-1H-pyrazol-1-yl)piperidine-1-carboxylate

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

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

methyl 6-(3-cyclopentylureido)-1,5-naphthyridine-3-carboxylate

6-(3-cyclopentylureido)-1,5-naphthyridine-3-carboxylic acid