tert-butyl (S)-(1-(5-(3-amino-7-ethylquinoline-2-carboxamido)-2-methoxypyridin-4-yl)piperidin-3-yl)carbamate

3-amino-7-vinylquinoline-2-carboxylic acid

3-{[(benzyloxy)carbonyl]amino}-7-vinylquinoline-2-carboxylic acid

tert-butyl [(3S)-1-(5-amino-2-methoxypyridin-4-yl)piperidin-3-yl]carbamate

tert-butyl (S)-(1-(2-methoxy-5-nitropyridin-4-yl)piperidin-3-yl)carbamate