Using CC(C)C(=O)Nc1ncnc2[nH]nnc12, C[Si](C)(C)CCOCCl to produce CC(C)C(=O)N(COCC[Si](C)(C)C)c1ncnc2c1nnn2COCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.