Using O=C(O)Cc1ccc(Cl)c(Cl)c1, OC1CCC(CN2CCCC2)NC1 to produce O=C(Cc1ccc(Cl)c(Cl)c1)N1CC(O)CCC1CN1CCCC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.