Using CN(C(=O)OCc1ccccc1)C1CCN(c2ccnc(OCc3ccccc3)c2)CC1 to produce CNC1CCN(c2cc[nH]c(=O)c2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.