Using C[C@H](C=O)O[Si](C)(C)C(C)(C)C, CNC(=O)[C@@H](Cc1ccccc1)N(C)C(=O)[C@@H](Cc1ccc2ccccc2c1)N(C)C(=O)/C=C/CC(C)(C)N to produce CNC(=O)[C@@H](Cc1ccccc1)N(C)C(=O)[C@@H](Cc1ccc2ccccc2c1)N(C)C(=O)/C=C/CC(C)(C)NC[C@@H](C)O[Si](C)(C)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.