[{"from": "human", "value": "Describe this molecule. [C][C][C][Branch1][Ring1][C][C][Branch2][Ring2][O][/C][=C][/C][=C][/C@@H1][Branch1][C][C][C@H1][C][C][C@@H1][C@@][Ring1][Branch1][Branch2][Ring1][Branch2][C][C][C][/C][\\-Ring1][=Branch1][=C][\\C][=C][\\C][C@H1][Branch1][#Branch2][C][C@@H1][Branch1][Branch1][C][/-Ring1][=Branch1][=C][O][O][C][O]"}, {"from": "gpt", "value": "The molecule is a vitamin D3 analogue with potential antineoplastic activity. Seocalcitol binds to and activates the vitamin D receptor, a cytoplasmic polypeptide expressed in normal vitamin D responsive tissues, but also overexpressed in certain cancers including hepatocellular carcinoma and pancreatic cancer. Mediated through vitamin D receptor, this agent induces cancer cell differentiation, inhibits cancer cell growth and induces apoptosis. In addition, seocalcitol may also induce growth arrest and apoptosis independent of vitamin D receptor activation through mechanisms that are not fully elucidated."}]