Paz Cristian, Ortiz Leandro, Schilde Uwe
Universidad de La Frontera, Departamento de Ciencias Quimicas y Recursos Naturales, Avenida Francisco Salazar 01145, 4811230 Temuco, Chile.
Universidad Austral de Chile, Instituto de Ciencias Quimica, Facultad de Ciencias, Casilla 567, 5090000 Valdivia, Chile.
Acta Crystallogr E Crystallogr Commun. 2017 Feb 7;73(Pt 3):334-337. doi: 10.1107/S2056989017001700. eCollection 2017 Mar 1.
The title compound, erioflorin, CHO [systematic name: (1a,3,4,5a,8a,9,10a)-1a,2,3,5a,7,8,8a,9,10,10a-deca-hydro-3-hy-droxy-4,10a-dimethyl-8-methyl-idene-7-oxooxireno[5,6]cyclo-deca-[1,2-]furan-9-yl methacrylate], is a tricyclic germacrane sesquiterpene lactone, which was isolated from (L.). The compound crystallizes in the space group 222, and its mol-ecular structure consists of a methacrylic ester of a ten-membered ring sesquiterpenoid annelated with an epoxide and a butyrolactone. The structure is stabilized by one intramolecular C-H⋯O hydrogen bond. An O-H⋯O hydrogen bond and further C-H⋯O interactions can be observed in the packing.
标题化合物，eriolflorin，CHO [系统名称：(1a,3,4,5a,8a,9,10a)-1a,2,3,5a,7,8,8a,9,10,10a-十氢-3-羟基-4,10a-二甲基-8-亚甲基-7-氧代环氧[5,6]环癸[1,2-]呋喃-9-基甲基丙烯酸酯]，是一种三环吉马烷倍半萜内酯，从（植物名称未给出）中分离得到。该化合物结晶于空间群222，其分子结构由一个与环氧化物和丁内酯稠合的十元环倍半萜类的甲基丙烯酸酯组成。该结构通过一个分子内C-H⋯O氢键得以稳定。在堆积中可观察到一个O-H⋯O氢键以及进一步的C-H⋯O相互作用。
