Using CC(C)(C)OC(=O)N1CCC(C(=O)Nc2ccccc2)CC1, C[Si](C)(C)N=[N+]=[N-] to produce CC(C)(C)OC(=O)N1CCC(c2nnnn2-c2ccccc2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.