Using CC[n+]1c(Sc2ccccc2)sc2ccccc21, C1=C(c2ccccc2)c2sc3ccccc3[n+]2CC1 to produce CCN1C(=C2C=C(c3ccccc3)c3sc4ccccc4[n+]3C2)Sc2ccccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.