[{"from": "human", "value": "What can you tell me about this molecule? [C][=C][N][C][=C][Branch1][N][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=N][Ring1][#Branch2][N][C][=N][Ring1][#Branch2]"}, {"from": "gpt", "value": "The molecule is a nucleobase analogue obtained by addition of an etheno group across positions N2 and 3 of guanine. It is an imidazopurine and a nucleobase analogue. It is functionally related to a guanine."}]