Using CN1CCC(=O)CC1, Nc1cccc(NC(=O)c2c(Cl)cc(Cl)cc2Cl)n1 to produce CN1CCC(Nc2cccc(NC(=O)c3c(Cl)cc(Cl)cc3Cl)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.