US 11,873,318 B2
Compositions comprising dichloroacetic acid, processes for preparing same and uses thereof
Hu Cheng, Jiangsu (CN); Chenchen Hu, Shanghai (CN); Jiaxin Song, Jiangsu (CN); Yang Liu, Jiangsu (CN); Tingting Qian, Jiangsu (CN); Xianzhe Wang, Jiangsu (CN); and Jimin Yang, Jiangsu (CN)
Assigned to CHANGZHOU SYNTHEALL PHARMACEUTICALS CO., LTD., Changzhou (CN); and SHANGHAI STA PHARMACEUTICAL R&D CO., LTD., Shanghai (CN)
Filed by CHANGZHOU SYNTHEALL PHARMACEUTICALS CO., LTD., Jiangsu (CN); and SHANGHAI STA PHARMACEUTICAL R&D CO., LTD., Shanghai (CN)
Filed on Jul. 21, 2022, as Appl. No. 17/870,551.
Application 17/870,551 is a continuation of application No. PCT/CN2021/095036, filed on May 21, 2021.
Prior Publication US 2023/0002438 A1, Jan. 5, 2023
Int. Cl. C07H 21/00 (2006.01)
CPC C07H 21/00 (2013.01) 20 Claims
 
1. A process for preparing a dichloroacetic acid composition having less than 1000 ppm glyoxylic acid, comprising: mixing a dichloroacetic acid material having greater than 1000 ppm glyoxylic acid with a glyoxylic acid capture reagent to obtain the dichloroacetic acid composition having less than 1000 ppm glyoxylic acid.