Using CCOC(=O)c1ccc(CN2CCN(c3cc(-c4ccccc4)c4ccc(=O)ccn34)CC2)cc1 to produce O=C(O)c1ccc(CN2CCN(c3cc(-c4ccccc4)c4ccc(=O)ccn34)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.