Core skeleton: a benzene ring (positions 1-6).  
- Position 1 bears a hydroxyl group.  
- Position 3 (meta to the hydroxyl) carries a benzylic methylene group (-CH2-), which connects to a nitrogen atom.  

Three carbon substituents on this nitrogen:
1. The benzylic methylene itself (described above) connecting back to the ring.

2. A 4-hydroxycyclohexyl group: a saturated six-membered ring attached through its C1, with a hydroxyl group at C4.

3. A chain extending from the nitrogen: a methylene group (-CH2-) followed by an sp2 carbon. This carbon carries a hydroxyl group and forms a double bond to an imine nitrogen. The imine nitrogen is further attached to a straight n-butyl chain (-CH2-CH2-CH2-CH3).

No stereocentres or defined E/Z geometry are specified.