[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. A vitamin D that can be regarded as a reduction product of vitamin D2."}, {"from": "gpt", "value": "[C][C@H1][C][C][C@@H1][Branch2][Ring2][#Branch1][C][/C][\\-Ring1][=Branch1][=C][\\C][=C][/C][C][C][C@][Branch2][Ring1][Branch2][C@H1][\\-Ring1][=Branch1][C][C][C@@H1][Ring1][Branch1][C@H1][Branch1][C][C][/C][=C][/C@H1][Branch1][C][C][C][Branch1][C][C][C][C][O]"}]