Fujisaka, Tomohiro; Miura, Masahiro; Nojima, Masatomo; Kusabayashi, Shigekazu
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1989 , p. 1031 - 1039

Pan; Chen; Piras; Dutschman; Rowe; Cheng; Chu -
Journal of Heterocyclic Chemistry, 1994 , vol. 31, # 1 p. 177 - 185

Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying Tetrahedron, 2011 ,  vol. 67,  # 9  p. 1640 - 1648

Muramatsu, Wataru; William, Julius M.; Onomura, Osamu Journal of Organic Chemistry, 2012 ,  vol. 77,  # 1  p. 754 - 759