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V. M. Chernyshev and A. V. Chernysheva, Recyclization of 2-(2,5-dioxopyrrolidin-1-yl)-guanidine under the action of aliphatic amines. a novel method for the synthesis of 3-(5-amino-1h-1,2,4-triazol-3-yl)propanoic acid amides // Chemistry of Heterocyclic Compounds, 2010, Volume 46, Number 5, 627-628,
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http://dx.doi.org/10.1007/s10593-010-0559-1
