[{"from": "human", "value": "Please give me some details about this molecule. [C][C][Branch1][#Branch2][O][C@H1][Branch1][Ring2][O][Ring1][Branch1][C][O][N][C][=C][C][=Branch1][=Branch1][=N][C][Ring1][=Branch1][=O][N]"}, {"from": "gpt", "value": "The molecule is a dioxolane derivative and a novel L-configuration deoxycytidine analogue with potent antineoplastic activity. When incorporated into growing chain during DNA replication, troxacitabine stops DNA polymerization due to its unnatural L-configuration, in contrast to the normal nucleotides with D-configuration. As a result, this agent terminates DNA synthesis upon incorporated into DNA molecules, and consequently interrupts tumor cell proliferation."}]