[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a natural product found in Gracilaria edulis, Gracilaria salicornia, and other organisms with data available."}, {"from": "gpt", "value": "[C][=C][N][=C][Branch1][#Branch2][N][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][N]"}]