Using O=C(O)Cc1c(-c2ccccc2)nn2cccnc12, CCCNCCC to produce CCCN(CCC)C(=O)Cc1c(-c2ccccc2)nn2cccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.