Miyagawa, Tomoko; Nagai, Keisuke; Yamada, Asami; Sugihara, Yoshinori; Fukuda, Takeo; Fukuda, Takashi; Uchida, Ryuji; Tomoda, Hiroshi; Omura, Satoshi; Nagamitsu, Tohru Organic Letters, 2011, vol. 13, # 5 p. 1158 - 1161 doi: 10.1021/ol200022a