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ChemInform Abstract: Synthesis of 5H-Pyrazino(2,3-b)indoles from Indole-2,3-dione Derivatives.

✍ Scribed by J. BERGMAN; H. VALLBERG

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199748189

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✦ Synopsis

Synthesis of 5H-Pyrazino(2,3-b)indoles from Indole-2,3-dione Derivatives.

-The reaction of the N-acetylisatins (I) with ethylenediamine yields the products (III). After dehydrogenation these compounds and their analogues (IV) after deacetylation are cyclized by heating to the title products (VI). N,N-Dimethylaminoalkylation of the anion of (VI) occurs selectively in the 5-position and these obtained products are of interest in view of their potent antiviral activity. -(BERGMAN,

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