(3S,7R)-7-Hydroxy-3-(6-methoxy-pyridin-3-yl)-9-(5,6,7,8-tetrahydro-[1,8]naphthyridin-2-yl)-nonanoic acid ethyl ester

[2-Oxo-4-(5,6,7,8-tetrahydro-[1,8]naphthyridin-2-yl)-butyl]-phosphonic Acid Dimethyl Ester

(E)-(S)-3-(6-Methoxy-pyridin-3-yl)-7-oxo-9-(5,6,7,8-tetrahydro-[1,8]naphthyridin-2-yl)-non-5-enoic acid ethyl ester