A new anthraquinone, Glyceroyl-1,6,8-trihydroxy-3-methyl-9, 10-dioxo-2-anthracene carboxylate I, was isolated from Clinopodium polycephalum. The chemical structure was determined by spectroscopic methods.
The structure of the title compound, which was isolated fromClinopodium polycephalum (Vant.) by C. Y. Wu et Hsuan, has been determined byX-ray diffraction analysis. C11H16O3, Mr= 196. The crystal belongs to the monocl...The structure of the title compound, which was isolated fromClinopodium polycephalum (Vant.) by C. Y. Wu et Hsuan, has been determined byX-ray diffraction analysis. C11H16O3, Mr= 196. The crystal belongs to the monoclinicspace group P21 with a= 6. 072 (3), b=11. 682 (5), c= 7. 865 (4) A, β= 109. 61(4)°, V=525. 5(4) , Z= 2, F(000) =212, Dc= 1.234 g/cm3, μ=0.08 mm-1.The structure was solved by direct methods and refined to R=0. 048 for 616 observedreflections. The molecule is composed of a six-membered ring and a five-membered lactone ring with a methyl and a hydroxy group at the two asymmetrical carbons locatedon the same side of the nucleus.展开更多
文摘A new anthraquinone, Glyceroyl-1,6,8-trihydroxy-3-methyl-9, 10-dioxo-2-anthracene carboxylate I, was isolated from Clinopodium polycephalum. The chemical structure was determined by spectroscopic methods.
文摘The structure of the title compound, which was isolated fromClinopodium polycephalum (Vant.) by C. Y. Wu et Hsuan, has been determined byX-ray diffraction analysis. C11H16O3, Mr= 196. The crystal belongs to the monoclinicspace group P21 with a= 6. 072 (3), b=11. 682 (5), c= 7. 865 (4) A, β= 109. 61(4)°, V=525. 5(4) , Z= 2, F(000) =212, Dc= 1.234 g/cm3, μ=0.08 mm-1.The structure was solved by direct methods and refined to R=0. 048 for 616 observedreflections. The molecule is composed of a six-membered ring and a five-membered lactone ring with a methyl and a hydroxy group at the two asymmetrical carbons locatedon the same side of the nucleus.