Using CCCC(=O)c1nc(CCC)n(Cc2ccc(-c3ccccc3C(=O)OC(C)(C)C)cc2)c1C#N to produce CCCc1nc(C(O)CCC)c(C#N)n1Cc1ccc(-c2ccccc2C(=O)OC(C)(C)C)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.