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