Using NCc1ccccc1, COP(=O)(OC)C(O)(Cc1cccc([Si](C)(C)C)c1)P(=O)(OC)OC to produce O=C(Cc1ccccc1)NCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.