Weissenfels, Manfred published the artcilePhotocatalytic systems. VIII. Preparation of 1,8-naphthyridine aldehydes, Formula: C10H10N2, the publication is Zeitschrift fuer Chemie (1978), 18(1), 20-1, database is CAplus.
Oxidation of methylnaphthyridines I (R = Me, R1 = H, Me) with SeO2 gave the corresponding aldehydes I (R = CHO, R1 = H, CHO), characterized as the oximes, semicarbazones, etc. Benzoin reaction of I (R = CHO, R1 = H) gave II, which was oxidized by air to III.
Zeitschrift fuer Chemie 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 C5H10N2OS, Formula: C10H10N2.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem