合成路线1

The condensation of 2-methylquinolin-8-ol (I) with 2,6-dichloro-3-nitrobenzyl chloride (II) by means of NaH in DMF gives the corresponding benzyl ether (III), which is reduced with Fe and HCl in methanol/water to the aniline (IV). The acylation of (IV) with 2-phthalimidoacetyl chloride (V) by means of DMAP and pyridine yields the amide (VI), which is methylated at the amidic nitrogen with NaH and methyl iodide in DMF to the N-methylanilide (VII). Elimination of the phthalimido group of (VII) with hydrazine in refluxing ethanol affords the glycine anilide (VIII), which is acylated with the acrylic acid (IX) by means of 1-[3-dimethylamino)propyl]-3-ethylcarbodiimide (DECD) and HOBT in DMF. The intermediate substituted acrylic acid (IX) has been obtained by reaction of 6-acetamidopyridine-3-carbaldehyde (X) with malonic acid and pyridine in refluxing ethanol.