Chiba, Hiroaki; Sakai, Yuki; Oishi, Shinya; Fujii, Nobutaka; Ohno, Hiroaki Tetrahedron Letters, 2012 , vol. 53, # 46 p. 6273 - 6276,4 Title/Abstract Full Text Show Details Chiba, Hiroaki; Sakai, Yuki; Oishi, Shinya; Fujii, Nobutaka; Ohno, Hiroaki Tetrahedron Letters, 2012 , vol. 53, # 46 p. 6273 - 6276