Condensed tetracyclic systems with an isatin fragment in the molecule.

Autor: Khoshtariya, T., Kurkovskaya, L., Matnadze, M., Sikharulidze, M., Dzhashi, T., Ananiashvili, V., Batsikadze, K.
Předmět:
Zdroj: Chemistry of Heterocyclic Compounds; Sep2007, Vol. 43 Issue 9, p1111-1117, 7p, 2 Diagrams, 3 Charts
Abstrakt: A new method for the synthesis of the dioxodihydro-1H-benzo[b]furoindole heterocyclic systems from the corresponding isomeric amino acids with the amino groups at positions 2 and 3 is described. By this method it is possible not only to obtain the indicated tetracyclic systems in the form of one isomer but also to interconvert them; from the tetracyclic systems with angular structure it is possible to obtain the corresponding isomers with linear structure and vice versa. The classical Sandmeyer reaction served a model for such transformations. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index