Davies, Stephen J.; Ayscough, Andrew P.; Beckett, R. Paul; Bragg, Ryan A.; Clements, John M.; Doel, Sheila; Grew, Christine; Launchbury, Steven B.; Perkins, Gemma M.; Pratt, Lisa M.; Smith, Helen K.; Spavold, Zoe M.; Thomas, S. Wayne; Todd, Richard S.; Whittaker, Mark
Bioorganic and Medicinal Chemistry Letters, 2003 , vol. 13, # 16 p. 2709 - 2713

Anadys Pharmaceuticals, Inc.
Patent: US2009/306057 A1, 2009 ;
Location in patent: Page/Page column 62 ;

Reddy, Chaganti P.; Tanimoto, Shigeo
Synthesis, 1987 , # 6 p. 575 - 577

Yoffe,S.T. et al.
Tetrahedron, 1972 , vol. 28, p. 2783 - 2798