Using CCOC(=O)CNCCN(C(=O)OC(C)(C)C)C1CCc2cc(C#N)c(OC)cc2C1 to produce COc1cc2c(cc1C#N)CCC(N1CCNCC1=O)C2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.