Song, Zhiguo J.; Zhao, Mangzhu; Desmond, Richard; Devine, Paul; Tschaen, David M.; Tillyer, Richard; Frey, Lisa; Heid, Richard; Xu, Feng; Foster, Bruce; Li, Jing; Reamer, Robert; Volante, Ralph; Grabowski, Edward J. J.; Dolling, Ulf H.; Reider, Paul J.; Okada, Shigemitsu; Kato, Yoshiaki; Mano, Eiichi Journal of Organic Chemistry, 1999 , vol. 64, # 26 p. 9658 - 9667