Using CC[Si](CC)(CC)O[C@H](CN=[N+]=[N-])CSc1ncn2cc(C3=C(C(=O)OCc4ccc([N+](=O)[O-])cc4)N4C(=O)[C@H]([C@@H](C)O)[C@H]4[C@H]3C)sc12 to produce C[C@@H](O)[C@H]1C(=O)N2C(C(=O)OCc3ccc([N+](=O)[O-])cc3)=C(c3cn4cnc(SC[C@H](O)CN=[N+]=[N-])c4s3)[C@H](C)[C@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.