参考文献

Yamamoto, Hirofumi; Sasaki, Ikuo; Mitsutake, Mizuho; Karasudani, Ayumi; Imagawa, Hiroshi; Nishizawa, Mugio Synlett, 2011, # 19 p. 2815 - 2818 doi: 10.1055/s-0031-1289566