[{"from": "human", "value": "Based on the given chemical reaction, can you propose some likely reagents that might have been utilized? [C][I].[C][O][C][=C][C][=C][C][Branch1][S][C][S][C][=N][C][=C][C][=C][Ring1][=Branch1][C][=Branch1][C][=O][O][=C][Ring1][P]>>[C][O][C][=Branch1][C][=O][C][=C][C][=C][N][=C][Ring1][=Branch1][S][C][C][=C][C][=C][C][Branch1][Ring1][O][C][=C][Ring1][Branch2]"}, {"from": "gpt", "value": "[C][C][#N]"}]