摘要
从鄂北贝母和紫花鄂北贝母中分离出鄂贝新(ebeiensine),分子式为C_(27)H_(41)NO_3·H_2O,属正交晶系,空间群为P2_12_12_1,晶胞参数a=0.6952(2)nm,b=1.5150(2)nm,c=2.5359(7)nm,Z=4,V=2.53260×10^(-27)m^3,有11-deoxo-5,6-dihydrojervanine杂环骨架,立体结构为5a,14a,20β-jervanine-3β-hydroxy-6-one,R=0.055。
The ebeiensine was isolated from the bulb of Fritillaria ebeiensis G. D. Yu et G. Q. Ji and Fritillaria ,ebeiensis var. purpurea G. D. Yu et P. Li. The result of the complete X-ray structural analysis shows that ebeiensine with the molecular formula C27H41NO3 · H2O, belongs to the rhombic system with space group P212121, and the lattice parameters are as follows- a = 0.6952(2) nm, b=1.5150(2) nm, c=2. 5359(7) nm, 7 = 2.53260×10-27 m3, Z=4, R = 0. 055. Ebeiensine has an 11-deoxo-5,6-dihydrojervanine heterocyclic skeleton and a stereochem-ical structure of 5a, 14α,20β-jervanine-3β-hydroxy-6-one. At the same time, C17-O-C23 was confirmed as β-configuration.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第5期658-661,共4页
Chemical Journal of Chinese Universities
关键词
湖北贝母
鄂贝斯
X射线衍射
Fritillaria in Hubei, Ebeibeimu, X-Ray diffraction
