32 Chem. Pharm. Bull. 450) 32— ~ 35 (1997) Vol» 45, No. 1 Beckmann Rearrangement of 0-4-Pentenyl Oxime through N—Bromosuccinimide-Mediated Activating Process Osamu KITAGAWA,” Masao FUJITA“, Midori OKADA,” and Takeo TAGUCHI*'" Tokyo College of Pharmacy,“ 1432-1 Horinouchi, Hachlojz', T okyo J92%3, Japan and Tokyo Women's Medical College," 8—1 Kawada-cho, Shinjuku-ku, Tokyo 162, Japan. Received July 4, 1996; ...