Uses
4-Hydroxythiobenzamide(25984-63-8) is used in the synthesis of PPARα agonists used in increasing HDLc levels. Also used in the synthesis of potent CDK5 inhibitors in the treatment of Alzheimer’s disease.
Description
4-Hydroxythiobenzamide is a key intermediate in febuxostat, a highly effective drug for treating gout. In addition, 4-hydroxythiobenzamide has been used to synthesize a variety of bioactive compounds, such as PPARγ agonists (used to increase high-density lipoprotein cholesterol levels) and potent CDK5 inhibitors (used in neurological disorders and cancer research).
Chemical Properties
4-Hydroxythiobenzamide has an appearance ranging from light orange to yellow to green, powder to crystalline, melting point 192 °C, soluble in methanol.
Uses
febuxostat intermediate
Uses
4-Hydroxythiobenzamide is used in the synthesis of PPARα agonists used in increasing HDLc levels. Also used in the synthesis of potent CDK5 inhibitors in the treatment of Alzheimer’s disease.
Synthesis
4-Hydroxythiobenzamide is an important intermediate of Febuxostat, a new anti-gout drug. A patent discloses a method for preparing p-hydroxythiobenzamide. Specifically, a certain amount of water, p-cyanophenol, sodium hydrosulfide, and secondary amine are mixed evenly. At a specific temperature, an organic weak acid is added dropwise. After the reaction is completed, the mixture is filtered, and the filter cake is dried to obtain 4-Hydroxythiobenzamide.
References
[1] Patent: US2005/75503, 2005, A1. Location in patent: Page/Page column 3
[2] Patent: US2012/78013, 2012, A1. Location in patent: Page/Page column 4
[3] Patent: CN106928108, 2017, A. Location in patent: Paragraph 0043; 0044; 0046; 0048; 0063; 0065; 0067; 0071
[4] Patent: WO2016/46836, 2016, A2. Location in patent: Page/Page column 3
[5] Synthetic Communications, 2000, vol. 30, # 6, p. 1083 - 1094
