A cyclohexane ring has one carbon bearing exactly two substituents:
1. An ethoxy group (-O-CH2-CH3).
2. A five-membered aromatic heterocycle composed, in sequence, of the attachment carbon, followed by nitrogen, oxygen, another carbon, and a second nitrogen, closing the ring (i.e., 1,2,4-oxadiazole). Number the heterocycle atoms 1 through 5 such that the ring junction carbon is atom 3, followed by nitrogen at atom 4, carbon at atom 5, oxygen at atom 1, and nitrogen at atom 2. The carbon at position 5 of this heterocycle carries a three-carbon chain, whose first carbon (alpha) bears an isopropyl substituent (-CH(CH3)2) and whose second carbon (beta) bears a hydroxyl group. No additional hydrogens, substituents, or stereochemistry are specified on this ring.
