Collect. Czech. Chem. Commun. 1991, 56, 2288-2297

Fused imidazo-, pyrimido- and 1,3-diazepino[1,2-c]pteridines from o-aminopyrazinecarbonitriles

Walter Ried* and Thomas Russ

Institut für Organische Chemie der Universität Frankfurt am Main, Laboratorium Niederrad, Theodor-Stern-Kai 7, D-6000 Frankfurt a.M. 70, F.R.G.

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