[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Laurencia brongniartii with data available."}, {"from": "gpt", "value": "[C][S][C][=C][C][=C][Branch1][Ring2][N][Ring1][Branch1][C][=C][Branch1][=Branch1][C][=C][Ring1][#Branch1][Br][Br]"}]