Pingbeinone, a novel steroidal alkaloid having C-18 nor cevane skeleton from Fritillaria ussuriensis Maxim

Pingbeinone, a novel steroidal alkaloid having C-18 nor cevane skeleton from Fritillaria ussuriensis Maxim New steroidal alkaloids from maxim. Pingbeinone and Heilonine Two New Steroidal Alkaloids from Fritillaria ussuriensis New steroidal alkaloids having a novel seven ring skeleton from maxim Ussurienine, a novel 5α-cevanine alkaloid from maxim. Chuanbeinone, a novel D/E cis-(22R,25S)-5α-cevanine alkaloid from chinese herbal drug, chuan-bei-mu A steroidal alkaloid from Fritillaria ebeiensis New steroidal alkaloids from the chinese herb drug, "Bei-mu". New steroidal alkaloids from the chinese herb drug, "Bei-mu". The structural elucidation of fritillaria alkaloids from Fritillaria ebeiensis var. purpurea. I. The structures of ebeienine, ebeiedine and ebeiedinone.