Using CCOc1ccccc1OCCN(C(=O)OC(C)(C)C)C(C)Cc1cc(C#N)c2c(c1)CCN2C(C)=O to produce CCOc1ccccc1OCCN(C(=O)OC(C)(C)C)C(C)Cc1cc(C#N)c2c(c1)CCN2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.