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Methyl pyrido[2,3-b]pyrazine-3-carboxyl-ate. 2011

Hoong-Kun Fun, and Madhukar Hemamalini, and Anita Hazra, and Shyamaprosad Goswami

The asymmetric unit of the title compound, C(9)H(7)N(3)O(2), is composed of two independent mol-ecules. The crystal structure is stabilized by C-H⋯O and C-H⋯N hydrogen bonds, forming a three-dimensional network. The crystal structure also features pyrazine-pyrazine π-π inter-actions [centroid-centroid distance = 3.6994 (5) Å] and also pyridine-pyrazine π-π inter-actions [centroid-centroid distance = 3.6374 (5) Å].

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