1. Analytical & Quality Evaluation Research Laboratories, Daiichi Sankyo Co., Ltd., 1-16-13, Kitakasai, Edogawa-ku, Tokyo 134-8630, Japan
2. Department of Chemistry, Nara Women’s University, Nara 630-8506, Japan
3. Department of Biotechnology, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita 565-0871, Osaka, Japan