参考文献

Ojika, Makoto; Kigoshi, Hideo; Ishigaki, Takeshi; Nisiwaki, Masanori; Tsukada, Itaru; et al. Tetrahedron Letters, 1993, vol. 34, # 52 p. 8505 - 8508 doi: 10.1016/S0040-4039(00)61370-9