Using CCCCCCc1ccc(-c2ccc(-c3ncc(C(=O)OCC)cn3)cc2)cc1 to produce CCCCCCc1ccc(-c2ccc(-c3ncc(C(=O)O)cn3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.