Using N=c1c(-c2nnn[nH]2)cnc2sc3ccccc3n12, S=P12SP3(=S)SP(=S)(S1)SP(=S)(S2)S3 to produce S=c1c(-c2nnn[nH]2)cnc2sc3ccccc3n12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.