The condensation of 1,6-naphthyridine-2-carboxylic acid (I) with 2-isopropoxybenzylamine (II) by means of EDC and HOBT in DMF yields the target compound.
The bromination of 1,6-naphthyridine-2-carboxylic acid (I) with Br2 in acetic acid gives the 8-bromo derivative (II), which is condensed with 2-isopropoxybenzylamine (III) by means of EDC and HOBT in DMF yielding the corresponding amide (IV). Finally, this compound is vinylated with CH2 = CH-SnBu3 and PdCl2(PPh3)2 in DMF.
The bromination of 1,6-naphthyridine-2-carboxylic acid (I) with Br2 in acetic acid gives the 8-bromo derivative (II), which is condensed with 2-isopropoxybenzylamine (III) by means of EDC and HOBT in DMF yielding the corresponding amide (IV). Finally, this compound is methylated with Sn(CH3)4 and PdCl2(PPh3)2 in DMF.