Using CCCNCCC, O=C(O)CCn1c(-c2ccc(Cl)cc2)nc2cccnc21 to produce CCCN(CCC)C(=O)CCn1c(-c2ccc(Cl)cc2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.