Using C[C@]12CC[C@H]3[C@@H](C(=O)C=C4NC(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2O, C[Si](C)(C)Cl to produce C[C@]12CC[C@H]3[C@@H](C(=O)C=C4N([Si](C)(C)C)C(=O)CC[C@@]43C)[C@@H]1CC[C@@H]2O[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.