6,7,8,9-Tetrahydrodipyrimido[4,5-b][4?,5?-e][1,4]thiazine derivatives. Synthesis and structure
Autor: | Yu. N. Sheinker, O. G. Sokol, V. M. Kazakova, N. P. Solov'eva, O. S. Anisimova, M. P. Nemeryuk, T. G. Arutyunyan, N. I. Traven, E. A. Shatukhina, N. A. Nerseyan, T. S. Safonova, E. M. Peresleni |
---|---|
Rok vydání: | 1989 |
Předmět: | |
Zdroj: | Chemistry of Heterocyclic Compounds. 25:214-220 |
ISSN: | 1573-8353 0009-3122 |
Popis: | The reaction of 5-amino-6-mercaptopyrimidines with 1,3-dimethyl-5-nitro-6-chlorouiracil in the presence of bases results in derivatives of 6,7,8,9-tetrahydrodipyrimido[4,5-b][4′,5′-e][1,4]-thiazine. If the 5-amino-6-mercaptopyrimdine contains a free or alkyl-substituted amino group at the 4-position, the tetrahydrodipyramidothiazines formed exist in a free radical form. The structure of the compounds formed has been established by spectral methods. |
Databáze: | OpenAIRE |
Externí odkaz: |