Using CC(=NO)C1=CC[C@H]2[C@@H]3CC[C@H]4CC=CC[C@]4(C)[C@H]3C(=O)C[C@]12C, O=P(Cl)(Cl)Cl to produce C[C@]12CC=CC[C@@H]1CC[C@@H]1[C@@H]2C(=O)C[C@]2(C)C(=O)CC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.