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[摘要]：Here we report a new class of 1,8-naphthyridine derivatives, 2-amino-7-(3,4-di methoxyphenyl)-1,8-naphthyridine, 2-amino-7-(3,4-dihydroxy phenyl)-1,8-naphthyridine, 2-amino-(5,6-dimethoxy-1H-indenyl[2,3-b])-1,8-naphthyridine, and 2-amino-(5,6-dihydroxy-1H-indenyl[2,3-b])-1,8-naphthyridine. All of these compounds were synthesized via naphthyridine-ring forming reaction with 2,6-diaminopyridine-3-carboxaldehyde as a key step. The two dimethoxy derivatives showed predominant fluorescent emission around 400 nm in MeCN. Cyclic voltammetry of the two dihydroxy derivatives in phosphate buffer showed oxidation potentials of 0.21 similar to 0.25 V vs. Ag/AgCl. |
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