The synthesis of the molecular chaperone 2,5-dideoxy-2,5-imino-d-altritol via diastereoselective reductive amination and carbamate annulation
作者:Alex A. Hunt-Painter、Bridget L. Stocker、Mattie S.M. Timmer
DOI:10.1016/j.tet.2018.01.011
日期:2018.3
7 steps and in 22% overall yield from readily available d-tagatose. This is the shortest and most efficient synthesis of DIA to date, with key steps in our synthetic strategy including a diastereoselective reductive amination and an I2-mediated carbamate annulation.
所述亚氨基糖-2,5-二脱氧-2,5-亚氨基d -altritol(DIA,2)是α半乳糖苷酶A的强有力的竞争抑制剂,并表现出很大希望作为治疗法布里病药理学伴侣。尽管如此,DIA的合成仍需要优化。因此,我们报告了7个步骤中DIA的总合成以及从容易获得的d-塔格糖中获得22%的总收率。这是迄今为止DIA最短,最有效的合成方法,是我们合成策略中的关键步骤,包括非对映选择性还原胺化和I 2介导的氨基甲酸酯环化。