1. The molecule has a fully saturated six-membered ring composed of five carbons and one oxygen.
2. Number the ring so that the oxygen is at position 1. At carbon 4, there is a single substituent:
   - An ether-linked substituent extends from the ring. This substituent begins with an -O- linkage to a three-methylene segment (-CH2-CH2-CH2-) that connects to a nitrogen atom.
   - This nitrogen is bonded to a carbon that forms a double bond with an N-methyl (-NCH3) group and a single bond with another nitrogen.
   - The second nitrogen carries an isobutyl (-CH2-CH(CH3)-CH3) substituent.
3. No additional substituents or stereochemistry are present.