On December 9, 2018 (November 3, 2018 in the lunar calendar), Peng Sixun, academician of China Academy of Engineering, expert of medicinal chemistry, and professor of China Pharmaceutical University, passed away. The reporter learned from China Academy of Engineering that Peng Sixun, a pharmaceutical chemistry expert, academician of China Academy of Engineering, professor and doctoral supervisor of China Pharmaceutical University, passed away on December 9. In addition, the official website of China Pharmaceutical University also issued an announcement on the evening of the 9th,"Deeply Mourning Academician Peng Sixun" and "Deeply Missing Academician Peng Sixun." Peng Sixun According to public information, Peng Sixun was born on July 28, 1919, of Tujia nationality, from Baojing, Hunan Province. He graduated from the National College of Medicine in 1942 and received a master's degree from the University of Colombia in the United States in 1950. After returning to China, he served as a member of the first and second discipline review teams of the Academic Degrees Committee of the State Council, convener of the Pharmacy Group, and consultant of the National New Drug Research and Development Leadership Coordination Group. Peng Sixun was elected as an academician of China Academy of Engineering in February 1996. Before his death, he served as a professor and doctoral supervisor of China Pharmaceutical University, an academic leader in national key disciplines of medicinal chemistry, chairman of the degree evaluation committee, and honorary professor of Central South University. According to the official website of China Academy of Engineering, Peng Sixun has been engaged in teaching and scientific research for a long time and was one of the early founders of my country's pharmaceutical chemistry and medicinal chemistry majors. my country's first textbook "Medicinal Chemistry"(1988 edition) edited by Peng Sixun was once rated as a national excellent textbook and founded magazines such as "Pharmaceutical Education". He advocated the idea of using the effective ingredients of Chinese herbal medicine as lead compounds, combining quantitative structure-activity relationship and computer-assisted drug design to design and synthesize new compounds. The main research direction is cardiovascular and cerebrovascular drugs, with a focus on compounds that act on calcium and bait ion channels.