Using CCCN(CCC)Cc1ccc(NC(=O)c2ccc(CNC(=O)OC(C)(C)C)cc2)cc1 to produce CCCN(CCC)Cc1ccc(NC(=O)c2ccc(CN)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.