“…Seleno-substitution products were obtained when α-haloketones reacted with seleno-nucleophiles [ 626 , 627 , 628 , 629 , 630 , 631 , 632 , 633 , 634 , 635 , 636 ]. For example, a series of selenophenopyridines 323 , with antiviral activity, could be prepared via reaction of 3-cyano-2(1 H )-pyridineselenones 322 with α-haloketones ( Scheme 93 ) [ 637 , 638 ].…”