Using OCCCO, COc1ccccc1C(O)c1ccc(NC(=O)C2(c3ccc4c(c3)OCO4)CC2)nc1 to produce COc1ccccc1C(OCCCO)c1ccc(NC(=O)C2(c3ccc4c(c3)OCO4)CC2)nc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.