The structure contains three rings arranged in sequence.

The first ring is a morpholine, a six-membered saturated heterocycle with a nitrogen at position 1 and an oxygen at position 4. Substituents on this ring are: a single methyl group on carbon 3, a pair of geminal methyl groups on carbon 5, and the nitrogen at position 1 bearing an acyl substituent (-C(=O)-) that links outward to the next ring.

Attached through this acyl group is the second ring, a piperidine, which is another six-membered saturated heterocycle with a nitrogen. The attachment occurs at a carbon, and the piperidine nitrogen is positioned ortho to this point of connection.

Finally, the piperidine nitrogen connects via a methylene bridge (-CH2-) to the third ring, a pyridine. The pyridine is a six-membered aromatic ring containing one nitrogen atom, and this nitrogen is meta to the methylene attachment point.