Tawada; Natsugari; Ishikawa; Sugiyama; Ikeda; Meguro
Chemical and Pharmaceutical Bulletin, 1995 , vol. 43, # 4 p. 616 - 625

Fujita, Megumi; Qi, Guizhong; Verkerk, Udo H.; Dzwiniel, Trevor L.; McDonald, Robert; Stryker, Jeffrey M.
Organic Letters, 2004 , vol. 6, # 16 p. 2653 - 2656