[{"from": "human", "value": "Please give me some details about this molecule. [C][C@@H1][C@H1][Branch2][Ring1][O][C@H1][Branch2][Ring1][=Branch1][C@@H1][Branch1][Ring2][O][Ring1][Branch1][N][C][=C][Branch1][#Branch2][C][=Branch1][C][=O][N][C][Ring1][#Branch1][=O][F][O][O]"}, {"from": "gpt", "value": "The molecule is a pyrimidine 5'-deoxyribonucleoside that is 5-fluorouridine in which the hydroxy group at the 5' position is replaced by a hydrogen. It is an oral prodrug of the antineoplastic agent 5-fluorouracil. Designed to circumvent the rapid degradation of 5-fluorouracil by dihydropyrimidine dehydrogenase in the gut wall, it is converted into 5-fluorouracil in the presence of pyrimidine nucleoside phosphorylase. It has a role as an antimetabolite, an antineoplastic agent and a prodrug. It is an organofluorine compound and a pyrimidine 5'-deoxyribonucleoside."}]