Using O=C(NC1CCNCC1)c1ccccc1, O=C(CCCCl)c1ccc(Cl)cc1 to produce O=C(CCCN1CCC(NC(=O)c2ccccc2)CC1)c1ccc(Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.