Using O=C(O)Cn1c(-c2ccc(Cl)cc2)nc2cccnc21, CC(=O)N1CCNCC1 to produce CC(=O)N1CCN(C(=O)Cn2c(-c3ccc(Cl)cc3)nc3cccnc32)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.