Using COS(=O)(=O)OC, COc1ccc(CC(O)=C(C#N)C#N)cc1OC to produce COC(Cc1ccc(OC)c(OC)c1)=C(C#N)C#N, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.