1. Chemistry Research Labs, Drug Discovery Research, Astellas Pharma, Inc.,
21 Miyukigaoka, Tsukuba, Ibaraki, 305-8585, Japan ; ;
2. Chemistry Research Labs, Drug Discovery Research, Astellas Pharma, Inc.,
21 Miyukigaoka, Tsukuba, Ibaraki, 305-8585, Japan
3. Molecular Medicine Research Labs, Drug Discovery Research, Astellas Pharma, Inc.,
21 Miyukigaoka, Tsukuba, Ibaraki, 305-8585, Japan