Using CCCCCc1cc(OC)c2c(c1)OC(C)(C)C=C2c1ccncc1 to produce CCCCCc1cc(OC)c2c(c1)OC(C)(C)CC2c1ccncc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.