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A Facile Route to Pyrrolo[3′,4′:3,4]pyrido[1,2-a]benzimidazoles, Novel Heterocyclic Derivatives

Synthesis , 2004, 03, 373-376

DOI: 10.1055/s-2004-815950

Tereshchenko A. D.; Tolmachev A. A.; Tverdokhlebov A. V.

The title system derivatives were prepared in two steps. Thus the condensation of 2-benzimidazoleacetonitrile with ethyl 4-chloro-3-oxobutanoate led to the 3-chloromethyl-1,5-dihydro-1-oxopyrido[1,2-a]benzimidazole-4-carbonitrile. Further amination of the obtained chloronitrile with primary amines yielded 1-amino-2,3-dihydro-2-R-5H-pyrrolo[3′,4′:3,4]pyrido[1,2-a]benzimidazol-5-ones.

A Facile Route to Pyrrolo[3′,4′:3,4]pyrido[1,2-a]benzimidazoles, Novel Heterocyclic Derivatives

Tereshchenko A. D.; Tolmachev A. A.; Tverdokhlebov A. V.
Synthesis 2004, 03, 373-376
DOI: 10.1055/s-2004-815950

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