Company Filing History:
1 out of 5 
1 out of 7 Years Active: 2007
Title: Asish R Das: Innovator in Pharmaceutical Chemistry
Introduction
Asish R Das is a notable inventor based in Hsinchu, Taiwan. He has made significant contributions to the field of pharmaceutical chemistry, particularly in the synthesis of important compounds used in medical treatments. His work has led to advancements in the preparation of tamsulosin and its derivatives, which are crucial for treating prostate-related conditions.
Latest Patents
Asish R Das holds a patent for a process for the preparation of tamsulosin and its aralkylamine derivatives. This invention discloses a new method for synthesizing tamsulosin, especially the compound (R)-(-)-5-{2-[2-(2-alkoxyphenoxy)ethylamino]propyl}-2-alkoxybenzenesulfonamides. The patent highlights the hydrochloride form of tamsulosin, which acts as an antagonist of α-A adrenoceptors in the prostate. Tamsulosin hydrochloride is characterized by its white crystalline form, melting with decomposition at approximately 230°C. It exhibits varying solubility in different solvents, making it a versatile compound in pharmaceutical applications.
Career Highlights
Throughout his career, Asish R Das has worked with prominent companies in the biotechnology sector. He has been associated with Well-being Biochemical Corporation and Taiwan Biotech Co., Ltd., where he has contributed to various research and development projects. His expertise in pharmaceutical chemistry has been instrumental in advancing the synthesis of critical compounds.
Collaborations
Asish R Das has collaborated with esteemed colleagues, including Ru Hwu Jih and Shwu Chen Tsay. These partnerships have fostered innovation and have played a significant role in the successful development of his patented processes.
Conclusion
Asish R Das is a distinguished inventor whose work in pharmaceutical chemistry has led to valuable advancements in the synthesis of tamsulosin and its derivatives. His contributions continue to impact the field positively, showcasing the importance of innovation in medical science.