Inoue, Hirozumi; Konda, Mikihiko; Hashiyama, Tomiki; Otsuka, Hisao; Watanabe, Akishige; Gaino, Mitsunori; Takahashi, Kaoru; Date, Tadamasa; Okamura, Kimio; Takeda, Mikio; Narita, Hiroshi; Murata, Sakae; Odawara, Akio; Sasaki, Haruhiko; Nagao, Taku
Chemical and Pharmaceutical Bulletin, 1997 , vol. 45, # 6 p. 1008 - 1026

Chedekel, Miles R.; Sharp, Dale E.; Jeffery, Gary A.
Synthetic Communications, 1980 , vol. 10, # 3 p. 167 - 174

Kumar; Sharma, Kshitija; Samarth
European Journal of Medicinal Chemistry, 2010 , vol. 45, # 10 p. 4467 - 4472