Using COc1cc(C2OCCO2)cc(OCCOCCOCCOCCNC(=O)OC(C)(C)C)c1OC to produce COc1cc(C=O)cc(OCCOCCOCCOCCNC(=O)OC(C)(C)C)c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.