This molecule is a tertiary amine bearing two methyl groups and one longer substituent. Number the longer substituent's atoms away from the nitrogen as follows:
- C1 and C2 are two methylene units (-CH2-CH2-).
- C2 is bonded to a sulfur atom (S).
- The sulfur is bonded to a tertiary carbon C3.
At C3, there are other two different substituents:
1. An isopropyl group (-CH(CH3)2).
2. An sp2 hybridized carbon which is bonded to a hydroxyl group and a nitrogen atom, with a double bond between the carbon and nitrogen (N-2).
That nitrogen attachment point (N-2) is attached to a phenyl ring, which has two substituents:
- A methoxy group (-OCH3) at the position adjacent to the nitrogen attachment point.
- A methyl group (-CH3) at the meta position relative to the nitrogen attachment point, which is also para to the methoxy group.