Using CCCC(=C/C(=O)OCC)/C=C/C1(O)C(C)=CC2(CC1(C)C)OC(C)C(C)O2 to produce CCCC(=C/C(=O)OCC)/C=C/C1(O)C(C)=CC(=O)CC1(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.