Using COc1ccccc1C1(O)C(O)CC(c2ccccc2)(c2ccccc2)C2CN(Cc3ccccc3)CC21 to produce COc1ccccc1C1(O)C(O)CC(c2ccccc2)(c2ccccc2)C2CNCC21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.