Using CC(C)CCC[C@H](C)[C@H]1CC[C@H]2C3=C(CC[C@]12C)[C@@]1(C)CCC(=NO)CC1C(=O)O3, O=S(Cl)Cl to produce CC(C)CCC[C@@H](C)[C@H]1CC[C@H]2C3=C(CC[C@]12C)[C@@]1(C)CCNC(=O)C[C@@H]1C(=O)O3, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.