Using CCCOc1cc2c(c(OCCC)c1C)CCC(=Cc1cccnc1)C2=O to produce CCCOc1cc2c(c(OCCC)c1C)CCC(Cc1cccnc1)C2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.