Using CCN1C(=O)C(C)(C)C(=O)N(C)c2cc(C=O)ccc21, Cc1cc2c(=O)n(CCN)ccc2o1 to produce CCN1C(=O)C(C)(C)C(=O)N(C)c2cc(CNCCn3ccc4oc(C)cc4c3=O)ccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.