Using CCOC(=O)C1CCC(Nc2nccc(-c3cnc4c(OCc5ccccc5)cccn34)n2)CC1 to produce CCOC(=O)C1CCC(Nc2nccc(-c3cnc4c(O)cccn34)n2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.