(S)-[[(Methylsulfonyl)oxy]methyl]piperidine-1-carboxylic Acid tert-Butyl Ester is a building block used in the stereoselective preparation of fluoro(fluorophenyl)(piperidinylmethoxy)indazole, which is a norepinephrine/serotonin reuptake inhibitor for the treatment of fibromyalgia.