Goswami, Shyamaprosad published the artcileMicrowave assisted improved synthesis of 6-formylpterin and other heterocyclic mono- and di-aldehydes, Category: naphthyridine, the publication is Synthetic Communications (2003), 33(3), 475-480, database is CAplus.
2-Pivaloylamino-6-formylpterin (1a) and a series of other important heterocyclic aldehydes have been synthesized in good yield by microwave assisted selenium dioxide oxidation Interestingly, 2-methylpyrazine gives 2-pyrazinecarboxylic acid under the similar condition.
Synthetic Communications 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, Category: naphthyridine.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem