[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is an oxacycle, an organonitrogen heterocyclic compound and an organic heterotricyclic compound."}, {"from": "gpt", "value": "[C][C][Branch1][C][C][Branch2][Ring1][N][C][C][C][=C][Branch2][Ring1][Ring1][C][=C][C][=C][C][=C][Ring1][=Branch1][N+1][=Branch1][#Branch1][=C][Ring1][#Branch2][O][Ring1][=N][C][O][C][O]"}]