Using CC(C)(C)OC(=O)N1CCC2(CC1)CN(C1(CO[Si](C)(C)C(C)(C)C)CC1)C(=O)CO2 to produce O=C1COC2(CCNCC2)CN1C1(CO)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.