Using C[Si](C)(C)CCOCCl, CC(C)N(Cc1cnc[nH]1)c1cccc([N+](=O)[O-])c1 to produce CC(C)N(Cc1cncn1COCC[Si](C)(C)C)c1cccc([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.