1-(1-(2-(7-fluoro-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)-3-(4-methoxyphenyl)thiourea

1-(2-(4-(5-chloro-1H-benzo[d]imidazol-2-yl)piperidin-1-yl)ethyl)-7-methoxy-1,5-naphthyridin-2(1H)-one

2-(1-(2-(2-oxo-7-(pyridin-3-yloxy)-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)-1H-benzo[d]imidazole-5-carbonitrile

1-(4-acetylphenyl)-3-(1-(2-(7-methoxy-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)urea

1-(4-chlorobenzyl)-3-(1-(2-(7-fluoro-2-oxo-1,5-naphthyridin-1(2H)-yl)ethyl)piperidin-4-yl)urea