The molecule is built on a fluorenone core, which is a tricyclic system consisting of two benzene rings fused through a central five-membered carbocycle. The remaining carbon in the five-membered ring (denoted C*), which is not part of either benzene, bears a carbonyl group (C=O), making the structure a fluorenone.

One of the benzene rings carries an additional substituent. The substituent is located at the carbon meta to the fused ring junctions; of the two possible meta carbons in each benzene ring, the one closer to C* is chosen.

From this benzene carbon, a side chain extends:
1. The ring carbon is connected via a carbonyl bridge (-C(=O)-) to the nitrogen of a piperidine ring (a fully saturated six-membered ring containing one nitrogen).
2. At the para position relative to the piperidine nitrogen, the piperidine ring is further substituted with another carbonyl bridge (-C(=O)-) that links to a benzene ring. This benzene ring carries a hydroxy group (-OH) at the para position relative to its attachment point.