The molecule is built on a 2,3-dihydrobenzofuran core, a fused system where a benzene ring is fused to a tetrahydrofuran ring (five-membered with an oxygen atom).

Number the rings as follows:
- For the tetrahydrofuran ring: O1, C2, C3, C4, C5, returning to O1.
- For the benzene ring: starting from the fused carbons C2 and C3, continue as C2, C3, C6, C7, C8, C9.

Substituents on the tetrahydrofuran ring:
- C4 is double-bonded to oxygen, forming a carbonyl group.
- C5 bears an exocyclic vinyl substituent (C5=CH-Ar). The double bond has Z geometry, and the terminal vinyl carbon is directly bonded to a phenyl ring that is meta-substituted with one methyl group.

Substituents on the benzene ring:
- C8 carries a hydroxy group.
- C9 is bonded to a methylene group (-CH2-), which connects to the ring nitrogen (N1) of a piperidine ring. The piperidine is a saturated six-membered heterocycle with one nitrogen, and the alpha-carbon to the nitrogen bears a methyl substituent.