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