Maezaki, Naoyoshi; Izumi, Mayuko; Yuyama, Sachiko; Sawamoto, Hiroaki; Iwata, Chuzo; Tanaka, Tetsuaki Tetrahedron, 2000, vol. 56, # 40 p. 7927 - 7945 doi: 10.1016/S0040-4020(00)00713-4