Ishibashi, Hiroyuki; Mita, Naoki; Matsuba, Naoko; Kubo, Tomoko; Nakanishi, Mariko; Ikeda, Masazumi Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1992 , # 21 p. 2821 - 2826