Shanghai Office, Shionogi & Co., Ltd., 318A, 3F, Building A, Far East International Plaza, No. 319, Xianxia Road, Shanghai 200051, China. ... Discovery Research Laboratories, Shionogi & Co., Ltd., 12-4, Sagisu 5-chome, Fukushima-ku, Osaka 553-0002, Japan. ... A practical synthesis of O-(2-(pyrazol-1-yl)pyridin-5-yl)methylhydroxylamine was achieved from the inexpensive raw materials, 2-chloro-5-chloromethylpyridine, pyrazole, and acetone oxime, using common ...