[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is a purine 2',3'-dideoxyribonucleoside."}, {"from": "gpt", "value": "[C][C][C][Branch1][#Branch1][O][C][Ring1][Branch1][C][O][N][C][=N][C][=C][Branch1][=Branch2][N][=C][N][=C][Ring1][=Branch1][Ring1][=Branch2][N]"}]