Kim, Jong Yup; Kim, Deukjoon; Kang, Suk Youn; Park, Woo-Kyu; Kim, Hyun Jung; Jung, Myung Eun; Son, Eun-Jung; Pae, Ae Nim; Kim, Jeongmin; Lee, Jinhwa Bioorganic and Medicinal Chemistry Letters, 2010 , vol. 20, # 22 p. 6439 - 6442