Using CCC/C=C/CO, CCCCCCc1ccc(-c2ccc(-c3ccc(O)s3)cc2)cc1 to produce CCC/C=C/COc1ccc(-c2ccc(-c3ccc(CCCCCC)cc3)cc2)s1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.