[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a member of pyrrolizines."}, {"from": "gpt", "value": "[C][C][=C][C][=C][Branch1][Ring2][O][Ring1][Branch1][C][=C][Branch1][O][C][=C][N][Ring1][Branch1][C][C][C][Ring1][Branch1][C]"}]