Using COc1ccc(N2CC3(CCN(c4ccc(OCc5ccccc5)cc4)CC3)OCC2=O)cc1 to produce COc1ccc(N2CC3(CCN(c4ccc(O)cc4)CC3)OCC2=O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.