Using C[Si](C)(C)ON, COc1ccc(SC2=C(C(=O)O)CCC2=CCCc2ccccc2)cc1OC to produce COc1ccc(SC2=C(C(=O)NO)CCC2=CCCc2ccccc2)cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.