2-[3-(2-chloropyridin-4-yl)[2,6]naphthyridin-1-ylamino]ethanol

8-[3-(2-chloropyridin-4-yl)-[2,6]naphthyridin-1-yl]-2,8-diazaspiro[4.5]decan-1-one

1-bromo-3-(2-chloropyridin-4-yl)-2,6-naphthyridine

1-bromo-3-(2-bromopyridin-4-yl)-2,6-naphthyridine