作者:Xiu-Dong Yang、Zhao-Xi Pan、Da-Jun Li、Guan Wang、Min Liu、Rong-Gui Wu、Yan-Hua Wu、Yong-Chen Gao
DOI:10.1021/acs.oprd.6b00175
日期:2016.10.21
A newly process for the synthesis of tofogliflozin hydrate, a sodium-glucose cotransporter type 2 (SGLT2) inhibitor, was described. Three improvements were achieved, including the development of a regioselective Friedel–Crafts reaction, a high-yield reduction, and a mild metal–halogen exchange. These improvements ultimately resulted in the isolation of tofogliflozin hydrate as a white solid in >99%
描述了一种新的合成水合托格列净的方法,一种钠-葡萄糖共转运蛋白2型(SGLT2)抑制剂。实现了三项改进,包括区域选择性Friedel-Crafts反应的开发,高收率的降低以及轻度的金属-卤素交换。这些改进最终导致了托福格列净水合物以白色固体的形式分离,纯度为> 99%(HPLC面积),在不使用色谱柱的情况下经过12个步骤后的总收率为23%。