US Patent Issued to Shanghai Fudan-Zhangjiang Bio-Pharmaceutical on May 26 for "Salt form and crystal form of JAK inhibitor, preparation method therefor, and use thereof" (Chinese Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,457, issued on May 26, was assigned to Shanghai Fudan-Zhangjiang Bio-Pharmaceutical Co. Ltd. (Shanghai).

"Salt form and crystal form of JAK inhibitor, preparation method therefor, and use thereof" was invented by Ming Cheng (Shanghai), Yaqi Cao (Shanghai), Junen Sun (Shanghai), Yu Pu (Shanghai), Jianping Jiang (Shanghai) and Wenbo Zhang (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided in the present invention are a salt form and a crystal form of a JAK inhibitor, a preparation method therefor, and the use thereof. An X-ray powder diffraction pattern of a crystal form A of a compound as shown in formula I has characteristic diffractio...