Usui, Yoshihiro; Uehara, Fumiaki; Hiki, Shinsuke; Watanabe, Kazutoshi; Tanaka, Hiroshi; Shouda, Aya; Yokoshima, Satoshi; Aritomo, Keiichi; Adachi, Takashi; Fukunaga, Kenji; Sunada, Shinji; Nabeno, Mika; Saito, Ken-Ichi; Eguchi, Jun-ichi; Yamagami, Keiji; Asano, Shouichi; Tanaka, Shinji; Yuki, Satoshi; Yoshii, Narihiko; Fujimura, Masatake; Horikawa, Takashi Bioorganic and Medicinal Chemistry Letters, 2017, vol. 27, # 16 p. 3726 - 3732 doi: 10.1016/j.bmcl.2017.06.078