Institution: | 1. Chemistry Laboratories, Institute for Drug Discovery Research, Yamanouchi Pharmaceutical Co., Ltd. , 21 Miyukigaoka Tsukuba, Ibaraki , 305 , Japan;2. Chemical Technology Laboratories, Bulk Manufacturing &3. Technology Division, Yamanouchi Pharmaceutical Co., Ltd. , 160-2 Akahama, Takahagi, Ibaraki , 318 , Japan |