Using S=C=Nc1cc(Cl)c(Cl)cn1, NC[C@]1(O)CN2CCC1CC2 to produce Clc1cnc(NC2=NC[C@@]3(CN4CCC3CC4)O2)cc1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.