Kubota, Seiju; Toyooka, Kouhei; Misra, Hemant K.; Kawano, Michinobu; Shibuya, Masayuki
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1983 , # 12 p. 2957 - 2962

Toyooka, Kouhei; Kawashima, Yasushi; Kubota, Seiju
Chemical & Pharmaceutical Bulletin, 1987 , vol. 35, # 3 p. 1030 - 1035