Using O=C(O)C(c1ccccc1)c1ccccc1, OCCC1CCNCC1 to produce O=C(C(c1ccccc1)c1ccccc1)N1CCC(CCO)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.