[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][O][C][=C][Branch1][Ring1][C][=O][C][=C][C][=C][Ring1][Branch2][S][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl]>>[C][O][C][=C][Branch1][Ring1][C][O][C][=C][C][=C][Ring1][Branch2][S][C][=C][C][=C][C][=C][Ring1][=Branch1][Cl]"}, {"from": "gpt", "value": "[C][O].[BH4-1].[Na+1]"}]