Manolov, Ilia; Danchev, Nicolay D.
Archiv der Pharmazie, 2003 , vol. 336, # 2 p. 83 - 94

Gohain, Mukut; Van Tonder, Johannes H.; Bezuidenhoudt, Barend C.B.
Tetrahedron Letters, 2013 , vol. 54, # 29 p. 3773 - 3776

Ikawa et al.
Journal of the American Chemical Society, 1944 , vol. 66, p. 902,905
Full Text Show Details
Wisconsin, Alumni Research Found.
Patent: US2427578 , 1945 ;