Start with a benzene ring (Ring A) numbered C1 to C6 clockwise.
  - C1: methoxy substituent (-OCH3).
  - C4: methyl substituent (-CH3).
  - C2: begins a two-carbon linker that connects to a second benzene ring (Ring B).

Two-carbon linker and stereochemistry:
  - The first carbon of the linker (C-alpha) is directly attached to C2 of Ring A and is a stereogenic center with S configuration.
  - C-alpha bears a chlorine atom and is bonded to the second linker carbon (-CH2-), which then attaches to Ring B.

Ring B substitution:
  - On Ring B, the carbon para to the linker attachment point carries a bromine atom.