Using CN1CCCC1CCN, O=C(O)Cn1c(-c2ccc(Cl)cc2)nc2cccnc21 to produce CN1CCCC1CCNC(=O)Cn1c(-c2ccc(Cl)cc2)nc2cccnc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.