Nagashima, Hideo; Sato, Koji; Tsuji, Jiro
Tetrahedron, 1985 , vol. 41, # 23 p. 5645 - 5652

Wang, Zhihui; Li, Meiyi; Zhang, Wenqin; Jia, Jiangnan; Wang, Fei; Xue, Song
Tetrahedron Letters, 2011 , vol. 52, # 45 p. 5968 - 5971