Dongye Xing

Title: The Innovative Contributions of Dongye Xing

Introduction

Dongye Xing is a notable inventor based in Beijing, China. He has made significant contributions to the field of drug synthesis, particularly through his innovative methods in pharmaceutical development. His work has led to advancements in the preparation of important medications.

Latest Patents

Dongye Xing holds a patent for a method for preparing lornoxicam. This method involves using 6-chloro-4-hydroxy-2-methyl-2-H-thieno[2,3-e]-1,2-thiazine methyl carboxylate-1,1-dioxide and 2-aminopyridine as raw materials, with xylene as a solvent. The process includes mixing the raw materials and solvent, adding a stabilizer, and subjecting the mixture to ammonolysis. The resulting reactant is cooled, and the solvent is removed through vacuum concentration. An organic solvent is then added, and the mixture is filtered to obtain crude lornoxicam, which is refined to produce the final product. The use of p-toluenesulfonic acid as a stabilizer is a key aspect of this method, as it reduces the reaction temperature and enhances the quality and yield of lornoxicam.

Career Highlights

Dongye Xing is associated with Beijing Jincheng Taier Pharmaceutical Co., Ltd., where he applies his expertise in drug synthesis. His innovative approach to pharmaceutical development has positioned him as a valuable asset in the industry.

Collaborations

Dongye Xing has worked alongside talented colleagues, including Zhen Liu and Zhongzheng Zhang. Their collaborative efforts contribute to the advancement of pharmaceutical research and development.

Conclusion

Dongye Xing's contributions to drug synthesis, particularly through his patent for preparing lornoxicam, highlight his innovative spirit and dedication to improving pharmaceutical processes. His work continues to impact the field positively.