Hussain Altaf, Siddiqui Hamid Latif, Rashid Rehana, Khan Khalid Mehmood, Parvez Masood
Acta Crystallogr Sect E Struct Rep Online. 2008 Mar 20;64(Pt 4):o723. doi: 10.1107/S1600536808006831.
The title compound, C(29)H(48)O, is a triterpenoid isolated from Adiantum incisum forssk. In the crystal structure, the asymmetric unit contains two independent mol-ecules which are not significantly different. Each mol-ecule contains four six-membered rings, all adopting chair conformations, and a five-membered ring in an envelope conformation. In the mol-ecular structure, non-classical intra-molecular C-H⋯O hydrogen bonds are observed.
标题化合物C(29)H(48)O是从铁线蕨中分离得到的一种三萜类化合物。在晶体结构中，不对称单元包含两个独立的分子，它们没有明显差异。每个分子包含四个均呈椅式构象的六元环和一个呈信封式构象的五元环。在分子结构中，观察到了非经典的分子内C-H⋯O氢键。
