Using CC(C)(C)[Si](C)(C)Cl, Oc1cc2c(cc1O)CNCC2 to produce CC(C)(C)[Si](C)(C)Oc1cc2c(cc1O[Si](C)(C)C(C)(C)C)CNCC2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.