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(Z)-Ethyl 2-cyano-2-{2-[5,6-dimethyl-4-(thiophen-2-yl)-1H-pyrazolo[3,4-b]-pyridin-3-yl]-hydrazinylidene}acetate

Research Authors
Hoong-Kun Fun, Madhukar Hemamalini, Hatem A. Abdel-Aziz, Tarek Aboul-Fadl
Research Journal
Acta Cryst.,  doi: 10.1107/S1600536811028911
Research Rank
1
Research Vol
E67
Research Website
journals.iucr.org/e/issues/2011/08/00/is2753/is2753.pdf
Research Year
2011
Research Abstract

In the title compound, C17H16N6O2S, an intramolecular N—H…O interaction generates an S(6) ring. The pyridine ring makes a dihedral angle of 71.38 (11)° with the thiophene ring. In the crystal, molecules are linked by a pair of N—H…N hydrogen bonds, forming an inversion dimer. The dimers are stacked in columns along the b axis through weak intermolecular C—H…N hydrogen bonds.