Using CC(C)(C)OC(=O)NC(=Nc1cccc(-c2ncccc2CO[Si](C)(C)C(C)(C)C)c1)NC(=O)OC(C)(C)C to produce N=C(N)Nc1cccc(-c2ncccc2CO)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.