Nishida, Atsushi; Fuwa, Mihoko; Fujikawa, Yukiko; Nakahata, Etsuko; Furuno, Asako; Nakagawa, Masako Tetrahedron Letters, 1998, vol. 39, # 33 p. 5983 - 5986 doi: 10.1016/S0040-4039(98)01228-3