The core of the molecule is a piperidine ring (a saturated six-membered ring containing one nitrogen and five carbons) numbered so that the nitrogen is at position 1.
- At position 3 (meta to the nitrogen), there is an (R)-configured chiral center bearing a methyl substituent.
- The ring nitrogen (N-1) is bonded to a sulfonyl group [S(=O)2] that is further connected to another nitrogen (N-2).
- Nitrogen N-2 is attached to a two-carbon chain. On the second carbon of this chain, there is another chiral center (S configuration) carrying both a hydroxyl group and a methyl ester (-C(=O)OCH3).
No other substituents are present.