Syntheses of the Proposed Structures of Poison-Frog Alkaloids 179 and 207E and Their Inhibitory Effects on Neuronal Nicotinic Acetylcholine Receptors - Toyooka, Naoki; Zhou, Dejun; Kobayashi, Soushi; Tsuneki, Hiroshi; Wada, Tsutomu; Sakai, Hideki; Nemoto, Hideo; Sasaoka, Toshiyasu; Tezuka, Yasuhiro; Subehan; Kadota, Shigetoshi; Garraffo, H Martin; Spande, Thomas F; Daly, John W (Synlett, 2008)