Using CCOCCl, CC(=O)O[C@H]1CC[C@@]2(C)[C@H](CC[C@@H]3[C@@H]2CC[C@]2(C)C(=O)C=C[C@]32O)C1 to produce CCOCO[C@]12C=CC(=O)[C@@]1(C)CC[C@H]1[C@H]2CC[C@@H]2C[C@@H](OC(C)=O)CC[C@@]21C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.