Meng Qing-Guo, Liu Lian-Dong, Guo Huan-Mei, Bi Yi, Wang Liang
Acta Crystallogr Sect E Struct Rep Online. 2010 Nov 17;66(Pt 12):o3210. doi: 10.1107/S1600536810046362.
The title compound, C(30)H(52)O(5)·2H(2)O, was degraded from pseudoginsenoside F11 which was extracted and seperated from Panax quinquefolium saponin. The three six-membered rings are in chair conformations. The five-membered ring is in an envelope conformation and the tetra-hydro-furan ring has a conformation inter-mediate between half-chair and envelope. In the crystal, inter-molecular O-H⋯O hydrogen bonds link mol-ecules into a three-dimensional network. Intra-molecular O-H⋯O hydrogen bonds also occur.
标题化合物C(30)H(52)O(5)·2H(2)O是从西洋参皂苷中提取分离得到的假人参皂苷F11降解而来。三个六元环呈椅式构象。五元环呈信封式构象，四氢呋喃环具有介于半椅式和信封式之间的构象。在晶体中，分子间的O-H⋯O氢键将分子连接成三维网络。分子内也存在O-H⋯O氢键。
