Ohta, Chisa; Kuwabe, Shin-Itsu; Shiraishi, Tai; Shinohara, Ikuo; Araki, Hiroshi; Sakuyama, Shigeru; Makihara, Takayuki; Kawanaka, Yasufumi; Ohuchida, Shuichi; Takuya, Seko Journal of Organic Chemistry, 2009 , vol. 74, # 21 p. 8298 - 8308