Using COC(=O)c1ccc(-c2cccc(-n3ncc4cc(C(C)(C)C)ccc4c3=O)c2COC(C)=O)n1C to produce COC(=O)c1ccc(-c2cccc(-n3ncc4cc(C(C)(C)C)ccc4c3=O)c2CO)n1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.