Using COc1ccc(C/C=C/O)c(C23CC4CC(CC(C4)C2)C3)c1 to produce COc1ccc(CCCO)c(C23CC4CC(CC(C4)C2)C3)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.