| Crystal Structure of Loliolide (5, 6,7a-Tetrahydro-6-hydroxy-4, 4, 7a-trimethyl-2 (4H)-benzofuranones) |
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| 作者姓名： | CHEN Jing-Yu CHEN Jian-Min XIAO Pei-Gen |
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| 作者单位： | CHEN Jing-Yu; CHEN Jian-Min; XIAO Pei-Gen(Institute of Medicinal Plant Development，the Chinese Academy of Medical Sciences，Peking Union Medical College，Beijing 100094 |
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| 摘 要： | 1INTRODUCTIONThetitlecompound,C,,H,,O,(mp:146～148'C),forthefirsttime,wasiso-latedfromClinopodiumpolycephalum(Vant-)byC.Y.WuetHsuancalled"DuanXueliu"inChinesethatisusedinfolkmedicineforthetreatmentofhaemorrhagiadisease1i.Itsstructurehasalreadybeendeterminedt2ibymeansofUV,lR,NMRandchemicalsynthesis.Sinceloliolideappearedtohaveantitumoractivity"'andim-munosuppressiveactivity'#'inrecentyears,weaffirmedthestructurebyX-raydiffractionanalysis.2EXPERIMENTALApaleyellowtransparentcry…
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Crystal Structure of Loliolide (5, 6,7a-Tetrahydro-6-hydroxy-4, 4, 7a-trimethyl-2 (4H)-benzofuranones) |
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| CHEN Jing-Yu, CHEN Jian-Min, XIAO Pei-Gen.Crystal Structure of Loliolide (5, 6,7a-Tetrahydro-6-hydroxy-4, 4, 7a-trimethyl-2 (4H)-benzofuranones)[J].Chinese Journal of Structural Chemistry,1997(5). |
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| Authors: | CHEN Jing-Yu CHEN Jian-Min XIAO Pei-Gen |
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| Abstract: | 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. |
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| Keywords: | clinopodium polycephalum lolioide crystal structure antitumor activity |
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