Using CCC(C)=O, N#Cc1c(Cl)c(Cl)c(Cl)c(Cl)c1C(=O)O to produce COC(=O)c1c(Cl)c(Cl)c(Cl)c(Cl)c1C#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.