Using CCCCCCC[C@H](C[C@H](CSC(c1ccccc1)(c1ccccc1)c1ccccc1)O[Si](C)(C)C(C)(C)C)C(=O)N[C@H](C(C)=O)C(C)(C)C, CCCC[N+](CCCC)(CCCC)CCCC to produce CCCCCCC[C@H](C[C@@H](O)CSC(c1ccccc1)(c1ccccc1)c1ccccc1)C(=O)N[C@H](C(=O)NC)C(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.