Using COC(=O)Cc1csc2cc(OCc3ccc(C)nc3C)cc(C#N)c12 to produce Cc1ccc(COc2cc(C#N)c3c(CC(=O)O)csc3c2)c(C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.