“…Recently, β-sultams have received much attention in both synthetic and medicinal chemistry [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 ], mainly because of their outstanding biological activities as, for example, antibiotics and enzyme inhibitors [ 9 , 10 , 11 , 12 , 13 ]. As a result, many synthetic methods to β-sultams have been developed [ 14 , 15 , 16 , 17 ].…”