Titanyuk; Beletskaya
Russian Journal of Organic Chemistry, 2010 , vol. 46, # 9 p. 1277 - 1281

Tong, Sok Teng (Amy); Barker, David
Tetrahedron Letters, 2006 , vol. 47, # 29 p. 5017 - 5020

US5965570 A1, ;

Fernandez, Maria; Trigo, Gregorio G.; Soellhuber, Monica M.
Heterocycles, 1986 , vol. 24, # 6 p. 1589 - 1593

Juli, Christina; Sippel, Martin; Jaeger, Jens; Thiele, Alexandra; Weiwad, Matthias; Schweimer, Kristian; Roesch, Paul; Steinert, Michael; Sotriffer, Christoph A.; Holzgrabe, Ulrike
Journal of Medicinal Chemistry, 2011 , vol. 54, # 1 p. 277 - 283

Tetrahedron Letters, , vol. 47, # 29 p. 5017 - 5020