title: X-ray structure study of ranaconitine hydrobromide.
abstract: Ranaconitine is an important diterpenoid alkaloid from Aconitum sinomontanum Nakai. The absolute configuration of natural ranaconitine was determined through an X-ray structure analysis of hydrated ranaconitine hydrobromide. The crystal presents a monoclinic system, space group P2(1) with Z = 2, unit cell dimensions: a = 10.6604(12) Å, b = 12.3674(14) Å, c = 12.2938(13) Å and β = 91.056(2)°. The chirality of the asymmetric carbon atoms was as follows: C10(S), C13(S), C14(S), C15(S), C16(S), C17(R), C23(S), C25(R), C26(S), C27(S), C28(S) and C30(S). Moreover, a complex network of hydrogen bonds occurred between neighbouring molecules.
authors: Xi'an Botanical Garden, Institute of Botany of Shaanxi Province, Xi'an, Shaanxi 710061, P.R. China.
authors: Jun-Hui
authors: JH
authors: Zhou
authors: Yang
authors: Y
authors: Li
authors: Lei
authors: L
authors: Zhang
authors: Da-Qi
authors: DQ
authors: Wang
mesh_terms: D000157:Aconitine / Q000031:analogs & derivatives* / Q000737:chemistry; D018360:Crystallography, X-Ray / Q000379:methods*; D008958:Models, Molecular
chemical_list: C079992:ranaconitine; D000157:Aconitine