Using O=C=Nc1ccc(Cl)c(Cl)c1, O=S1(=O)CCNCCN1CCCN1CCCCC1 to produce O=C(Nc1ccc(Cl)c(Cl)c1)N1CCN(CCCN2CCCCC2)S(=O)(=O)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.