Using CCOc1ccc2sc(C(=O)N3CCOCC3)c(C)c2c1C#N, CO to produce Cc1c(C(=O)N2CCOCC2)sc2cc(O)c(O)c(C#N)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.