Using COC(=O)c1ccc(C(=O)N2CCCCc3ccccc32)cc1OC to produce COc1cc(C(=O)N2CCCCc3ccccc32)ccc1C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.