Using O=C(NCCS)OCc1ccc([N+](=O)[O-])cc1, C[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]1C(=O)N[C@@H]1CC(=O)O to produce C[C@@H](O[Si](C)(C)C(C)(C)C)[C@H]1C(=O)N[C@@H]1CC(=O)SCCNC(=O)OCc1ccc([N+](=O)[O-])cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.