Weber, E. published the artcileBenzo condensed crown ethers containing 1,8-naphthyridine or 4-pyridone units. Synthesis and complex formation with organic guest molecules, SDS of cas: 14903-78-7, the publication is Journal fuer Praktische Chemie/Chemiker-Zeitung (1995), 337(6), 451-5, database is CAplus.
New crown compounds, e.g., I, comprising, beside o-phenylene groups, 1,8-naphthyridine or 4-pyridone groups as characteristic building units are synthesized. They form numerous stoichiometric crystalline complexes with uncharged organic mols. including alcs., nitro compounds and other dipolar-aprotic solvents, as well as cyclic ethers and aromatic hydrocarbons. Properties of complex formation and host-guest stoichiometries are discussed in comparison with parent host analogs.
Journal fuer Praktische Chemie/Chemiker-Zeitung 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 C26H41N5O7S, SDS of cas: 14903-78-7.
Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem