Shono, Tatsuya; Hamaguchi, Hiroshi; Sasaki, Manji; Fujita, Shumei; Nagami, KimihikoShono, Tatsuya; Sasaki, Manji; Nagami, Kimihiko; Hamaguchi, Hiroshi Journal of Organic ChemistryTetrahedron Letters, 19831982, vol. 4823, # 101 p. 1621 - 162897 - 98 doi: 10.1021/jo00158a01010.1016/S0040-4039(00)97543-9