Start with a morpholine ring, a saturated six-membered ring with an oxygen at position 1 and a nitrogen at position 4 (para to each other). Number the ring accordingly for the substituents below.

- Position 2: the ring carbon bears a methylamino-methyl substituent: the ring carbon is connected to a methylene (-CH2-), then a secondary amine (-NH-), and terminates in a methyl group (i.e., -CH2-NH-CH3).

- Position 3: the ring carbon is double-bonded to an exocyclic oxygen.

- Position 4: the ring bears a benzene ring; on that benzene, the meta position relative to the attachment point carries a bromine atom.