Using CC(C)(C)[Si](C)(C)OC1=C2[C@@H]3CC[C@H](NC4CC4)[C@@]3(C)CC[C@@H]2[C@@]2(C)CCC(=O)NC2=C1 to produce C[C@]12CC[C@H]3[C@@H](C(=O)C=C4NC(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2NC1CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.