Synthesis of derivatives of a new heterocyclic system, indolo[2,3-f][1,7]naphthyridine
摘要:
3-(N'-Aryl-N'-cliloroacetyl)amino-2-formyliildoles were converted into 3-amino-1-aryl2-oxo-1,2-dihvdropyrido[3,2-b]indoles, which were used to synthesize derivatives of a new heterocyclic system, namely, indolo [2.3-f][1,7] naphthyridine. The structures of the resulting Compounds were proved by IR and H-1 NMR spectroscopy and mass spectrometry.
A number of 1-aryl-2-oxo-1,2,3,6-tetrahydro[1,4]diazepino[6,5-b]indole 4-oxides were synthesized based on 3-[N-aryl-N-(chloroacetyl)amino]-2-formylindoles. The nature of the substituent in the 1-aryl fragment has a pronounced influence on the course of reactions throughout the whole sequence of transformations during the synthesis of diazepinoindoles. The reduction of 4-oxides by formamidinosulfinic acid, hydrogen in the presence of Pd/C, and sodium bisulfite was studied. The structures of the reaction products were confirmed using IR and H-1 NMR spectroscopy and mass spectrometry.