2-(5-Bromopyridin-3-yl)-5-[3-(4,5,6,7-tetrahydrothieno[3,2-c]pyridine-5-ylsulfonyl)thiophen-2-yl]-1,3,4-oxadiazole

Abstract

In the title compound, C18H13BrN4O3S3, the tetrahydropyridine ring adopts a half-chair conformation with the central methylene-C atom of the NCH2CH2 unit at the flap. The dihedral angles between the tetrahydropyridine ring and the pyridine and two thiophene rings are 69.34 (13) 5.66 (13) and 68.63 (13)°, respectively, while the dihedral angle between the 1,3,4-oxadiazole and tetrahydropyridine rings is 54.76 (13)°. The molecule is stabilized by an intramolecular C—H...N interaction. In the crystal, adjacent molecules are connected via bifurcated C—H...(N,O) hydrogen bonds, forming a chain along the b axis.