Using CC(=O)OC(C)=O, CCOC(=O)C1NCCc2nc(CC)n(Cc3ccc(-c4ccccc4C(=O)OC(C)(C)C)cc3)c21 to produce CCOC(=O)C1c2c(nc(CC)n2Cc2ccc(-c3ccccc3C(=O)OC(C)(C)C)cc2)CCN1C(C)=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.