Jeon, Heechol; Jo, Nam Hyun; Yoo, Kyung Ho; Choi, Joung-Hoon; Cho, Heeyeong; Cho, Jung-Hyuck; Oh, Chang-Hyun European Journal of Medicinal Chemistry, 2007, vol. 42, # 3 p. 358 - 364 doi: 10.1016/j.ejmech.2006.10.006