Using C=CCc1cc(CC=C)c(O)c(-c2cc(CC=C)c(O)c(CC=C)c2)c1 to produce CCCc1cc(CCC)c(O)c(-c2cc(CCC)c(O)c(CCC)c2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.