Gao Xue, Chen Gang
Research Center of Medical Chemistry and Chemical Biology, Chongqing Technology and Business University, Chongqing 400067, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1208. doi: 10.1107/S1600536812012470. Epub 2012 Mar 28.
The title compound, C(15)H(20)O(3), a sesquiterpene lactone, was isolated from the aerial parts of Carpesium minus Hemsl. (Compositae). The mol-ecule is composed of three rings, with the two cyclo-hexane rings in chair conformations and the cyclo-pentane ring adopting a twist conformation. The A/B ring junction is trans-fused. The absolute configuration shown has been arbitrarily assigned. In the crystal, mol-ecules are linked into [100] chains by O-H⋯O hydrogen bonds.
标题化合物C(15)H(20)O(3)，一种倍半萜内酯，是从小花金挖耳（菊科）的地上部分分离得到的。该分子由三个环组成，两个环己烷环呈椅式构象，环戊烷环呈扭船式构象。A/B环稠合为反式。所示的绝对构型是任意指定的。在晶体中，分子通过O-H⋯O氢键连接成[100]链。
