Using C=C(c1cn(C(c2ccccc2)(c2ccccc2)c2ccccc2)cn1)c1ccc2cccnc2c1C to produce Cc1c(C(C)c2c[nH]cn2)ccc2cccnc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.