Using C[Si](C)(C)ON, COc1ccc(SC(CCCCc2ccccc2)C(C)C(=O)O)cc1 to produce COc1ccc(SC(CCCCc2ccccc2)C(C)C(=O)NO)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.