参考文献

Fujimoto, Yuuki; Itakura, Ryohei; Hoshi, Hiroki; Yanai, Hikaru; Ando, Yoshio; Suzuki, Keisuke; Matsumoto, Takashi Synlett, 2013 , vol. 24, # 19 art. no. ST-2013-U0675-L, p. 2575 - 2580