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