Straightforward chemo-enzymatic synthesis of new aminocyclitols, analogues of valiolamine and their evaluation as glycosidase inhibitors
作者:Lahssen El Blidi、Mustapha Ahbala、Jean Bolte、Marielle Lemaire
DOI:10.1016/j.tetasy.2006.09.010
日期:2006.10
fructose-1,6-bisphosphate aldolase mediated synthesis of new aminocyclitol analogues of valiolamine is described. The one-pot process where four stereocentres are created involves the formation of two carbon–carbon bonds. One is catalysed by the aldolase, coupling dihydroxyacetone phosphate to nitrobutyraldehydes. The other is the result of a highly stereoselective intramolecular Henry reaction occurring
描述了一种有效的果糖-1,6-二磷酸醛缩酶介导的缬氨酰胺新氨基环醇类似物的合成。建立四个立体中心的一锅法涉及两个碳-碳键的形成。一种是由醛缩酶催化的,将磷酸二羟基丙酮与硝基丁醛偶联。另一个是在中间硝基酮上发生高度立体选择性的分子内亨利反应的结果。根据与硝基为α的羟基的构型,可得到两个系列的构型。提出了硝基醇缩酮(硝基醛的前体)的脂肪酶分辨率。评估了硝基还原后获得的氨基环糖醇对五种商业糖苷酶的抑制特性。