Synthesis of dihydro-1,3-thiazine derivatives. II |
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Authors: | A. E. Kretov A. P. Momsenko A. S. Bespalyi Yu. A. Levin |
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Affiliation: | (1) Kursk Polytechnic Institute, USSR |
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Abstract: | 1-Oxo-3-thioxo-5-hydroxy-2-acyl-2,3-dihydro-1H-1,3-thiazino[6,5-c]quinolines were obtained for the first time by condensation of 2-hydroxy-3-mercaptoquinoline-4-carboxylic acid with acyl isothiocyanates. Alkyl and acyl isothiocyanates react with 1-methyl-2-oxo-3-mercapto-1, 2-dihydroquinoline-4-carboxylic acid to give 1,5-dioxo-3-thioxo-2-alkyl (acyl)6-methyl-2, 3,5,6-tetrahydro-1H-1,3-thiazino [6,5-c] quinolines.See [1] for communication I.Deceased.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 641–643, May, 1973. |
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