Li Shu-Hua, Chen Feng-Zheng
Department of Chemistry and Life Sciences, Leshan Teachers College, Leshan 614004, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 27;66(Pt 12):o3319. doi: 10.1107/S1600536810047562.
5,6β-dihy-droxy-1α,14α,16β-trimeth-oxy-4-methyl-7β,8-methyl-enedi-oxy-20-ethyl-aconitan-6-yl acetate acetone monosolvate), C(27)H(41)NO(8)·C(3)H(6)O, was isolated from Delphinium bonvalotii Franch, and is a typical C(19)-diterpenoid alkaloid. The mol-ecule has a lycoctonine carbon skeleton with four six-membered rings and three five-membered rings. Three six-membered rings adopt the chair conformations while the fourth adopts a boat conformation, while the five-membered rings have the envelope conformations. The solvent mol-ecule links with the organic mol-ecule via a classical O-H⋯O hydrogen bond. Weak C-H⋯O hydrogen bonding is present in the structure. An intra-molecular O-H⋯O hydrogen bond also occurs.
5,6β - 二羟基 - 1α,14α,16β - 三甲氧基 - 4 - 甲基 - 7β,8 - 亚甲基二氧基 - 20 - 乙基乌头碱 - 6 - 基乙酸酯丙酮单溶剂合物，C(27)H(41)NO(8)·C(3)H(6)O，从川西翠雀花中分离得到，是一种典型的C(19) - 二萜生物碱。该分子具有一个含有四个六元环和三个五元环的狼毒素碳骨架。三个六元环呈椅式构象，而第四个呈船式构象，五元环具有信封式构象。溶剂分子通过经典的O - H⋯O氢键与有机分子相连。结构中存在弱的C - H⋯O氢键。还存在分子内O - H⋯O氢键。
