Using C=C(C(=O)O)[C@@H]1CC[C@@H](C)[C@@H]2CCC(C)=C[C@@H]21 to produce C=C(CO)[C@@H]1CC[C@@H](C)[C@@H]2CCC(C)=C[C@@H]21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.