bicyclic β-lactams accompanied by Type II cleavage products. High temperature photolysis of them gave 2,9-dithia-6-azabicyclo[4,3,0]nonan-7-ones involving α-cleavage reactions of thioxo-β-lactams which were produced by ring opening reactions of thiazine rings of β-lactams.
3-酰基-2-
硫代四氢-
1,3-噻嗪的光解反应,然后进行乙酰化,得到双环β-内酰胺,并伴有II型裂解产物。它们的高温光解产生了2,9-二
硫杂-6-
氮杂双环[4,3,0]壬南-7-酮,涉及
硫代-β-内酰胺的α-裂解反应,这是由β-
噻嗪环的开环反应产生的-内酰胺。