4,6-Dimethyl-2-(4-phenylpiperazin-1-ylmethyl)isothiazolo[5,4-b]pyridin-3(2H)-one

The crystal structure of the title compound, C₁₉H₂₂N₄OS, is described. The isothiazolopyridine part of the molecule is planar, while the piperazine ring adopts a slightly deformed chair conformation. The structure is stabilized by a network of weak C—H...X hydrogen bonds, and the conformation of the phenylpiperazine substituent may be influenced by a C—H...S intramolecular short contact.

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