Using COC(=O)C(C)(C)COc1ccc(N2CCOc3ncnc(N)c3C2=O)cn1 to produce CC(C)(COc1ccc(N2CCOc3ncnc(N)c3C2=O)cn1)C(=O)O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.