Using CC(C)(C)OC(=O)N1[C@@H](CC2(C=O)CC2)COC1(C)C, C[Si](C)(C)N[Si](C)(C)C to produce C=CC1(C[C@H]2COC(C)(C)N2C(=O)OC(C)(C)C)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.