[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is a pyrimidine 2'-deoxyribonucleoside having cytosine as the nucleobase. It has a role as a human metabolite, a Saccharomyces cerevisiae metabolite, an Escherichia coli metabolite and a mouse metabolite. It is functionally related to a cytosine."}, {"from": "gpt", "value": "[C][C@@H1][Branch2][Ring1][=Branch1][C@H1][Branch1][P][O][C@H1][Ring1][Branch1][N][C][=C][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N][C][O][O]"}]