Using O=C1NC(=O)c2cc(Cl)c(Cl)cc21, CC(C)(C)[Si](C)(C)O[C@H]1CC[C@H](O)C1 to produce CC(C)(C)[Si](C)(C)O[C@@H]1CC[C@H](N2C(=O)c3cc(Cl)c(Cl)cc3C2=O)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.