1. The core is a five-membered lactam ring (pyrrolidin-2-one, a saturated ring containing one nitrogen and four carbons, with an oxygen atom double bonded to a carbon adjacent to the nitrogen). Number the ring so that the ring nitrogen is position 1 and the oxygen-bonded carbon is position 2.
2. The nitrogen at position 1 carries a two-carbon chain that leads to a benzene ring bearing a single methyl group para to the chain attachment (i.e., a 4-methylphenyl moiety).
3. The ring carbon at position 4 is bonded to a 1,2,4-oxadiazole ring (a five membered aromatic ring labeled with the atoms O-N-C-N-C at positions 1 through 5).
4. On the 1,2,4-oxadiazole, the aforementioned lactam ring is attached at the carbon at position 3, and the carbon at position 5 is substituted with a pyrazole (a five membered aromatic ring containing three carbons and two nitrogens, one of which bears a hydrogen).
5. In this pyrazole ring, label the nitrogen bearing a hydrogen as position 1 and the other nitrogen as position 2; the carbon at position 3 is attached to the aforementioned oxadiazole ring, and the carbon at position 5 is substituted with an unsubstituted phenyl ring.