ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,577, issued on Feb. 17, was assigned to SOOCHOW UNIVERSITY (Suzhou, China).
"7-ethyl-10-hydroxycamptothecin drug precursor with fluorescence activity, and preparation method and use thereof" was invented by Zhengqing Guo (Suzhou, China), Yangyang Huang (Suzhou, China), Dandan Ji (Suzhou, China), Han Xu (Suzhou, China), Hui He (Suzhou, China) and Dingding Ai (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention provides a 7-ethyl-10-hydroxycamptothecin drug precursor with fluorescence activity and a preparation method and use thereof. The method involves that a carboxyl group of a boron dipyrromethene dye molecule is condensed w...