Takeuchi, Tomoki; Oishi, Shinya; Kaneda, Masato; Misu, Ryosuke; Ohno, Hiroaki; Sawada, Jun-Ichi; Asai, Akira; Nakamura, Shinya; Nakanishi, Isao; Fujii, Nobutaka
Bioorganic and Medicinal Chemistry, 2014 , vol. 22, # 12 p. 3171 - 3179

Viswanathan, N.; Desai, Ranjit C.
Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 1981 , vol. <B> 20, # 4 p. 308 - 310

Tschernezkii et al.
Zhurnal Obshchei Khimii, 1955 , vol. 25, p. 2161,2167; engl. Ausg. S. 2123, 2128