[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [C][C][=Branch1][C][=O][O].[N][C][=C][C][=C][C][=C][Ring1][=Branch1]>>[C][C][=Branch1][C][=O][N][C][=C][C][=C][C][=C][Ring1][=Branch1]"}, {"from": "gpt", "value": "[PH4+1]"}]