CONDENSED TETRACYCLIC SYSTEMS WITH AN ISATIN FRAGMENT IN THE MOLECULE
DOI:
https://doi.org/10.1007/7390Keywords:
isatin, indole, pyrroleAbstract
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.How to Cite
Khoshtariya, T. E.; Kurkovskaya, L. N.; Matnadze, M. M.; Sikharulidze, M. I.; Dzhashi, T. O.; Ananiashvili, V. O.; Batsikadze, K. T. Chem. Heterocycl. Compd. 2007, 43, 1111. [Khim. Geterotsikl. Soedin. 2007, 1314.]
For this article in the English edition see DOI 10.1007/s10593-007-0171-1