参考文献

Pottorf, Richard S.; Chadha, Naresh K.; Katkevics, Martins; Ozola, Vita; Suna, Edgars; Ghane, Hadi; Regberg, Tor; Player, Mark R. Tetrahedron Letters, 2003 ,  vol. 44,  # 1  p. 175 - 178