Using CCOS(=O)(=O)OCC, Cc1nc(O)c(Cc2ccc(-c3ccccc3C#N)cc2)c(=O)[nH]1 to produce CCOc1nc(C)[nH]c(=O)c1Cc1ccc(-c2ccccc2C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.