Abstract
Methods were developed of indirect introduction of sulfonamide group in the structures of pyrido-[2,1-b]quinazolin-11-one and pyrido[1,2-a]quinazolin-6-one underlain by cyclocondensation of 2-halo-5-(Rsulfamoyl) benzoyl chlorides with derivatives of 2-aminopyridine. The fact of thermal rearrangement of 8-(morpholin-4-ylsulfonyl)pyrido[1,2-a]quinazolin-6-one into isomeric 2-(morpholine-4-ylsulfonyl)pyrido[2,1-b]-quinazolin-11-one was experimentally registered.
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Original Russian Text © R.М. Shlenev, S.I. Filimonov, А.V. Tarasov, А.S. Danilova, P.А. Agat’ev, 2016, published in Zhurnal Organicheskoi Khimii, 2016, Vol. 52, No. 2, pp. 257–260.
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Shlenev, R.M., Filimonov, S.I., Tarasov, A.V. et al. Synthesis of sulfonamide derivatives of pyrido-[2,1-b]quinazolin-11-one and pyrido[1,2-a]quinazolin-6-one. Russ J Org Chem 52, 240–243 (2016). https://doi.org/10.1134/S1070428016020147
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DOI: https://doi.org/10.1134/S1070428016020147