Pansare, Sunil V.; Jain, Rajendra P.; Bhattacharyya, Annyt
Tetrahedron Letters, 1999 , vol. 40, # 28 p. 5255 - 5258

Yu, Yin; Chen, Guo-qiang; Zhu, Jun; Zhang, Xu-sheng; Chen, Shu-xin; et al.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 8 p. 2239 - 2243

Yu, Yin; Chen, Guo-qiang; Zhu, Jun; Zhang, Xu-sheng; Chen, Shu-xin; et al.
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 8 p. 2239 - 2243