Tautomerism and Stereodynamics of Indophenols,Amidines, and Their Derivatives and Analogs: XVI. Synthesis of Tetrahydroquinoxalines Having Spiro-Fused Oxoindole and Cyclohepta[c]furan Fragments |
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| Authors: | Kurbatov S. V. Kuznetsov D. N. Simakov V. I. Voronina V. A. Zhdanov Yu. A. Olekhnovich L. P. |
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| Affiliation: | (1) Rostov State University, Rostov-on-Don, Russia |
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| Abstract: | Alkylation of o-(N-sulfonylamino)phenylimino derivatives of indol-2-one and cyclohepta[c]furan with phenacyl bromides is accompanied by cyclization to previously unknown tetrahydroquinoxalines having spiro-fused oxoindole and cyclohepta[c]furan fragments. The structure of the latter includes a nitrogen-oxygen triangular system typical of most natural cytotoxic compounds. |
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