Using CNC[C@H](CC(=O)OC(C)(C)C)Nc1ccc(C#N)c(Cl)c1 to produce CNC[C@H](CC(=O)OC)Nc1ccc(C#N)c(Cl)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.