| Summary: | In the molecule of the title compound, C17H15N5O3S, the planar central heterocylic ring system is oriented at dihedral angles of 5.32 (4) and 9.41 (4)°, respectively with respect to trimethoxyphenyl and pyridine rings. Intramolecular C—H...N, C—H...O and C—H...S hydrogen bonds result in the formation of a nearly planar six-membered ring, which is oriented at a dihedral angle of 3.07 (5)° with respect to the central heterocylic ring system, and non-planar six- and five-membered rings having twist and envelope conformations, respectively. In the crystal structure, intermolecular C—H...N and C—H...O hydrogen bonds link the molecules. There is a C—H...π contact between the pyridine ring and a methyl group and a π–π contact between the central heterocylic ring system and the trimethoxyphenyl ring [centroid–centroid distance = 3.758 (1) Å].
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