Using C(CCc1cncn1Cc1ccccc1)=C(c1ccccc1)c1ccccc1 to produce c1ccc(Cn2cncc2CCCC(c2ccccc2)c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.