[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is used in combination with [DB11609] as an antitussive. It is currently marketed in Canada by Valeant under the tradename Cophylac."}, {"from": "gpt", "value": "[C][C@@H1][Branch1][S][C@@H1][Branch1][N][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][O][O][N][C]"}]