[{"from": "human", "value": "Provide a brief overview of this molecule. [C][C@@H1][Branch2][Ring1][#Branch2][C@H1][Branch2][Ring1][Ring2][O][C@H1][Ring1][Branch1][N][C][=C][Branch1][#Branch2][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][I][C][O][O]"}, {"from": "gpt", "value": "The molecule is a pyrimidine 2'-deoxyribonucleoside."}]