Multienzymatic cascades are responsible for the biosynthesis of natural products and represent a source of inspiration for synthetic chemists. The FeII/α‐ketoglutarate‐dependent dioxygenaseAsqJ from Aspergillus nidulans is outstanding because it stereoselectively catalyzes both a ferryl‐induced desaturation reaction and epoxidation on a benzodiazepinedione. Interestingly, the enzymatically formed
多酶级联反应负责天然产物的生物合成,代表了合成化学家的灵感来源。构巢曲霉Fe II /α-酮戊二酸依赖性双加氧酶AsqJ之所以出色,是因为它立体选择性地催化了在苯并二氮杂二酮上的由Ferryl引起的去饱和反应和环氧化反应。有趣的是,酶促形成的螺环氧化物将非酶重排的6,7-双环骨架弹簧加载到喹诺酮生物碱4'-甲氧基viridicatin的6,6-双环骨架中。在本文中,我们报道了在没有和存在模仿这种特殊的双加氧酶反应周期各个阶段的合成底物,替代物和中间体的情况下,蛋白质的不同晶体结构。