RESUMEN
In the title compound, C17H22N2O4S, a thio-piperidine derivative, the piperidine ring has an envelope conformation with the methyl-ene C atom opposite to the C=S bond as the flap. The nitro-methyl substituent is equatorial while the eth-oxy-carbonyl group is axial. The mean planes of the nitro-methyl group, the carb-oxy group and phenyl ring are inclined to the mean plane through the five planar atoms of the piperidine ring [maximum deviation = 0.070â (4)â Å] by 56.8â (2), 83.8â (5) and 87.1â (2)°, respectively. There is an intra-molecular C-Hâ¯O hydrogen bond involving an H atom of the eth-oxy-carbonyl group and a nitro O atom. In the crystal, mol-ecules are linked by C-Hâ¯O hydrogen bonds, forming chains along [100]. The chains are linked by further C-Hâ¯O hydrogen bonds, forming corrugated layers lying parallel to (001).