Using CS(N)(=O)=O, Cc1ccc(OCC(=O)N2C[C@H](C)N(Cc3ccc(F)cc3)C[C@H]2C)c(CCC(=O)O)n1 to produce Cc1ccc(OCC(=O)N2C[C@H](C)N(Cc3ccc(F)cc3)C[C@H]2C)c(CCC(=O)NS(C)(=O)=O)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.