Acta Cryst. (2013). E69, o1810 [ doi:10.1107/S160053681303153X ]
Abstract: In the title compound, C19H16N4O3, the stereocenter has an L configuration; L-tryptophan methyl ester hydrochloride being used as a starting material. The indole ring system and the pyridine ring are inclined to one another by 13.55 (14)°. In the crystal, adjacent molecules are linked via N-HO hydrogen bonds, forming chains propagating along the c-axis direction.
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