A green enzymatic strategy for the synthesis of terminally phosphorylated C5 to C9 naturally occurring D-ketose phosphates and analogues was developed using D-fructose-6-phosphate aldolase (FSA) as a catalyst. This enzyme has stereoselectively catalysed aldol reactions between glycolaldehyde phosphate or ribose-5-phosphate as an acceptor substrate and dihydroxyacetone, hydroxyacetone or hydroxybutanone as a donor. Furthermore, D-glycero-D-altro-2-octulose 8-phosphate was obtained using a straightforward one-pot domino biocatalytic system involving FSA, ribulose-5-phosphate epimerase and ribose-5-phosphate isomerase controlling five contiguous asymmetric centres and starting from achiral material.
以 D-
果糖-6-磷酸醛醇酶(F
SA)为催化剂,开发了一种合成末端
磷酸化的 C5 至 C9 天然 D-酮糖
磷酸酯及其类似物的绿色酶法策略。这种酶可立体选择性地催化以
磷酸乙醛或 5-
磷酸核糖为受体底物与以二
羟基丙酮、
羟基丙酮或羟基
丁酮为供体的醛醇反应。此外,还利用一个简单的一锅多米诺
生物催化系统(包括 F
SA、
核酮糖-5-
磷酸外切酶和
核酮糖-5-
磷酸异构酶),控制五个连续的不对称中心,并从非手性材料开始,获得了 D-
甘油-D-
麦芽糖-
2-辛酮糖-8-
磷酸酯。