Using CCCCCCCCOc1cnc(-c2ccc(/C=C/CCCC(C)OC(C)=O)cc2)nc1 to produce CCCCCCCCOc1cnc(-c2ccc(/C=C/CCCC(C)O)cc2)nc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.