Using CCOC(=O)CCc1ccn(CCN(C)C)c(=O)c1, CCOC=O to produce CCOC(=O)C(C=O)Cc1ccn(CCN(C)C)c(=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.