Using O=C1NCN(CCCNCC(O)(Cc2ccccc2)c2ccc(OCc3ccccc3)cc2)c2ccccc21 to produce O=C1NCN(CCCNCC(O)c2ccc(O)cc2)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.