Using CC1(C)COC(CC(CCO[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)Sc2cc3ccccc3[nH]2)=N1 to produce CC1(C)COC(CC(CCO)Sc2cc3ccccc3[nH]2)=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.