In the tricyclic title compound, C11H12N2OS, the 2,3,4,5-tetra-hydro-pyridine ring adopts a half-chair conformation. This ring makes dihedral angles of 27.72 (7) and 45.17 (7)°, respectively, with the isoxazole and the cyclo-hexa-1,3-diene rings while the iso... ...