1-[4-bromo-3-(2-chloropyridin-4-yl)-[2,6]naphthyridin-1-yl]piperidine-4-carboxylic acid methyl ester

1-{3-[2-(tetrahydropyran-4-ylamino)pyridin-4-yl][2,6]naphthyridin-1-yl}piperidine-4-carboxylic acid isopropylamide

1-[3-(2-chloropyridin-4-yl)-4-(4-fluorophenyl)-[2,6]naphthyridin-1-yl]piperidine-4-carboxylic acid isobutylamide

1-[3-(2-cyclohexylaminopyridin-4-yl)-4-methyl-[2,6]naphthyridin-1-yl]piperidine-4-carboxylic acid isobutylamide

1-[4-bromo-3-(2-chloropyridin-4-yl)-[2,6]naphthyridin-1-yl]piperidine-4-carboxylic acid