Using Cc1cc(C)cc(C(=CC2CCCC2)c2cc3cccnc3[nH]2)c1 to produce Cc1cc(C)cc(C(CC2CCCC2)c2cc3cccnc3[nH]2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.