参考文献

Takagi, Akira; Ikawa, Takashi; Kurita, Yurio; Saito, Kozumo; Azechi, Kenji; Egi, Masahiro; Itoh, Yuji; Tokiwa, Hiroaki; Kita, Yasuyuki; Akai, Shuji Tetrahedron, 2013 , vol. 69, # 21 p. 4338 - 4352