Using C[Si](C)(C)c1ccc(N)cc1, O=C=NC(=O)c1c(F)cccc1F to produce C[Si](C)(C)c1ccc(NC(=O)NC(=O)c2c(F)cccc2F)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.