Using COc1cc(Nc2c(C#N)cnc3cc(-c4csc(C5OCCO5)c4)sc23)c(Cl)cc1Cl to produce COc1cc(Nc2c(C#N)cnc3cc(-c4csc(C=O)c4)sc23)c(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.