Using COS(=O)(=O)OC, COc1c(O)cn2ncc(C#N)c(Nc3ccc(Oc4ccccc4)cc3)c12 to produce COc1cn2ncc(C#N)c(Nc3ccc(Oc4ccccc4)cc3)c2c1OC, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.