1,6-NAPHTHYRIDINE-2,6(5H)-DICARBOXYLIC ACID,7,8-DIHYDRO-,6-(1,1-DIMETHYLETHYL) ESTER, Benzoic acid, 6-[[6-[2-(dimethylamino)ethyl]-4-methoxy-1,3-benzodioxol-5-yl]acetyl]-2,3-dimethoxy-, 7,8-DIHYDRO-5H-[1,6]NAPHTHYRIDINE-2,6-DICARBOXYLIC ACID 6-TERT-BUTYL ESTER, 6-BOC-5,6,7,8-TETRAHYDRO-1,6-NAPHTHYRIDINE-2-CARBOXYLIC ACID, 6-(tert-butoxycarbonyl)-5,6,7,8-tetrahydro-1,6-naphthyridine-2-carboxylic acid, 6-{[6-(2-Dimethylamino-aethyl)-4-methoxy-benzo[1,3]dioxol-5-yl]-acetyl}-2,3-dimethoxy-benzoesaeure, 6-{[6-(2-dimethylamino-ethyl)-4-methoxy-benzo[1,3]dioxol-5-yl]-acetyl}-2,3-dimethoxy-benzoic acid, 6-{[(1,1-dimethylethyl)oxy]carbonyl}-5,6,7,8-tetrahydro-1,6-naphthyridine-2-carboxylic acid