Jones, Richard A. Y. published the artcileKinetics of quaternization of some naphthyridines and methylnaphthyridines, Related Products of naphthyridine, the publication is Chemical Communications (London) (1969), 56-7, database is CAplus.
The 2nd order rate constants for the reaction of MeI with some naphthyridines and methylnaphthridines in MeCN were determined by a conductimetric method. The following results were obtained at 24.8° (compound, and rate constant × 10-4 l./mole/sec. given): quinoline, 0.517; isoquinoline, 4.23; 1,5-naphthyridine, 0.232; 1,6-naphthyridine, 1.66; 1,8-naphthyridine, 4.25; 2-methyl-1,8-naphthyridine, 3.61; 3-methyl-1,8-naphthyridine, 5.74; 4-methyl-1,8-naphthyridine, 7.26; and 2,7-dimethyl-1,8-naphthyridine, 1.85. The rate constants are used to deduce the quaternization kinetics of the reactions.
Chemical Communications (London) 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, Related Products of naphthyridine.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem