Mastalarz, H. published the artcileThe synthesis of some 2,7-disubstituted 1,8-naphthyridines, Synthetic Route of 14903-78-7, the publication is Polish Journal of Chemistry (1994), 68(3), 459-65, database is CAplus.
The reaction of 2,7-dichloro-1,8-naphthyridine (I) with the Na salts of some active methylene compounds is described. The resulting 7-chloro-2-substituted and 2,7-disubstituted 1,8-naphthyridine derivatives exist in 2(1H)-naphthryidine form. The reactions of 2,7-dichloro-1,8-naphthyridine with diethanolamine, hydrolysis and acid-catalyzed decomposition for some of the obtained compounds were also reported.
Polish Journal of Chemistry published new progress about 14903-78-7. 14903-78-7 belongs to naphthyridine, auxiliary class 6.6_Aromatics,Naphthyridines, name is 2,7-Dimethyl-1,8-naphthyridine, and the molecular formula is C10H10N2, Synthetic Route of 14903-78-7.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem