This molecule is based on a six-membered piperazine ring (two nitrogens at ring positions 1 and 4). The ring's first nitrogen (N-1) is the nitrogen of the amide -N-C(=O)-, whose carbonyl carbon is also bonded to a single "alpha" carbon. That alpha carbon bears two distinct substituents:
    - a 1-hydroxyethyl group (-CH(OH)-CH3), and
    - a substituent in which the alpha carbon is single-bonded to a nitrogen; that nitrogen is double-bonded to another carbon, which in turn is single-bonded to both an oxygen and a cyclopropyl ring (a three-carbon saturated ring).
On the nitrogen (N-4) at position 4 of piperazine ring, there is a phenyl substituent bearing a chlorine meta to the point of attachment and a methyl ortho to the point of attachment, so that the chlorine and methyl groups are positioned on opposite sides of the ring.
