Using COc1ccc(C(O)(c2ccc(OC)cc2)C2CCN(Cc3ccccc3)CC2)cc1 to produce COc1ccc(C(O)(c2ccc(OC)cc2)C2CCNCC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.