Start with a thiazole ring, an aromatic five-membered ring with heteroatoms (a sulfur atom and a nitrogen atom) in a meta arrangement. Number it S1-C2-N3-C4-C5, returning to S1.

The substituents on this thiazole ring:
- C2: methyl (-CH3).
- C4: methyl (-CH3).
- C5: bears the side chain described below.

The details of the side chain at C5:

- C5 is directly bonded to a chiral sp3 carbon that is R-configured. This stereocenter is attached to:
  a) a methyl group,
  b) the thiazole C5 (point of attachment),
  c) a nitrogen N* (defined below),
  d) an implicit hydrogen.

- Nitrogen N* is single-bonded to an sp3 carbon that carries:
  a) two methyl groups, and
  b) a carboxylic acid substituent.