9TOMITA K,TSUZUKI Y,SHIBAMORI K,et al.Synthesis and Structure-activity Relationships of Novel 7-Substituted 1,4-Dihydro-4-oxo-1-(2-thiazolyl)-1,8-naphthyridine-3-carboxylic Acids as Antitumor Agents(Part 1)[J].J Med Chem,2002,45(25):5564-5575.
10MAGALI V,VLADIMIR L,GERAND P,et al.Practical Synthesis of 8-Acyl-7-alkyl-1,6-naphthyridin-5(6H)-ones[J].Tetrahedron,2002,58(42):8543-8551.