Using Cc1cc(C(N)=O)ccc1N, CCOC(=O)CCC(=O)CCC(=O)c1ccc(N2CCOC2=O)cc1 to produce CCOC(=O)CCc1ccc(-c2ccc(N3CCOC3=O)cc2)n1-c1ccc(C(N)=O)cc1C, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.