Nakamura, Yuichi; Kato, Hikaru; Nishikawa, Tadateru; Iwasaki, Noriyuki; Suwa, Yoshiaki; Rotinsulu, Henki; Losung, Fije; Maarisit, Wilmar; Mangindaan, Remy E. P.; Morioka, Hiroshi; Yokosawa, Hideyoshi; Tsukamoto, Sachiko Organic Letters, 2013 , vol. 15, # 2 p. 322 - 325