Gesenberg, Kirsten; Deshpande, Prashant P.; Pullockaran, Annie; Xu, Feng; Wu, Dedong; Gao, Qi; Pathirana, Charles; Castoro, John; Soundararajan, Nachimuthu; Staab, Andrew Tetrahedron Letters, 2007 , vol. 48, # 15 p. 2675 - 2677