参考文献

Das, Biswanath; Veeranjaneyulu, Boyapati; Balasubramanyam, Penagaluri; Srilatha, Malampati Tetrahedron Asymmetry, 2010, vol. 21, # 23 p. 2762 - 2767 doi: 10.1016/j.tetasy.2010.11.003