ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,900, issued on June 2, was assigned to SICHUAN UNIVERSITY (Chengdu, China) and ACADEMY OF MILITARY MEDICAL SCIENCES (Beijing).
"Method for preparing forodesine" was invented by Yong Qin (Chengdu, China), Wu Zhong (Beijing), Fei Xue (Chengdu, China), Minjie Zhang (Chengdu, China), Shiyong Fan (Beijing), Zhibing Zheng (Beijing) and Song Li (Beijing).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of chemical drug synthesis, and specifically relates to a method for preparing a compound as shown in formula I, comprising: treating the compound as shown in formula VII with an acid to generate the compound ...