水朝阳旋覆花化学成分的研究

从水朝阳旋覆花(Inula helianthus-aquatica)地上部分分离得到24个化合物,经波谱数据分析分别鉴定为aromaticin(1),8-epi-helenalin(2),bigelovin(3),2,3-dihydroaromaticin(4),carpesiolin(5),ergolide(6),inuchinenolide C(7),6α-acetoxy-isoinuviscolide(8),8-epi-inuviscolide(9),inuchinenolide B(10),tomentosin(11),11α,13-dihydrotomentosin(12),inuchinenolide A(13),4H-tomentosin(14),11β,13-dihydro-4H-tomentosin(15),11-epi-sundiversifolide(16),sundiversifolide(17),8,9,10-三羟基百里香酚(18),10-羟基-8,9-双氧亚异丙基百里香酚(19),8,10-二羟基-9-异丁酰百里香酚(20),8-羟基-9,10-二异丁酰百里香酚(21),8-羟基-9-异丁酰-10-(2-甲基丁酰)百里香酚(22),8,9-环氧-9,10-二异丁酰百里香酚(23)和8,9-环氧-3-异丁酰-10-(2-甲基丁酰)百里香酚(24)。除了化合物1～6外,其他化合物均为首次从该植物中分离得到。     

艾纳香化学成分的研究

从艾纳香(Blumea balsamifera DC.)中分离得到12个化合物,通过理化性质和波谱数据分析分别鉴定为;商路素(1),花椒油素(2),2,4-二羟基-6-甲氧基苯乙酮(3),5,7-二羟基色原酮(4),金丝桃苷(5),异槲皮苷(6),3′,4′,5,7-四羟基-3-甲氧基黄酮(7),槲皮素(8),槲皮素-3′-甲氧基-3-O-β-D-半乳吡喃糖苷(9),4′,5,7-三羟基-3,3′-二甲氧基黄酮(10),3,5,7-三羟基-3′,4′-二甲氧基黄酮(11),木犀草素(12).其中,化合物3-7和9- 11为首次从该属植物中分离得到.     

滇南羊耳菊乙酸乙酯部位化学成分研究(英文)

从滇南羊耳菊(Inula wissmanniana)地上部分的乙酸乙酯部位分离得到16个化合物,包括6个黄酮类,5个苯丙素类和5个其它芳香类化合物,经波谱数据分析鉴定为木犀草素(1),3-甲氧基槲皮素(2),5,6,4'-三羟基-3,7-二甲氧基黄酮(3),洋艾素(4),紫杉叶素(5),二氢山奈酚(6),3,4-二-O-咖啡酰奎宁酸(7),3,5-二-O-咖啡酰奎宁酸(8),C-veratroylglycol(9),2,3-dihydroxy-1-(4-hydroxy-3,5-dimethoxyphenyl)-1-propanone(10),咖啡酸(11),邻苯二甲酸二丁酯(12),3,4-二羟基苯甲酸(13),3-羟基-4-甲氧基苯甲酸(14),对羟基苯甲酸(15)和香兰素(16)。所有化合物均为首次从该植物中分离得到。     

鸡血藤中的酚酸类化合物

为了解鸡血藤(Spatholobus suberectus Dunn)的化学成分,从鸡血藤的95%乙醇提取物中分离出15个酚酸类单体成分,经波谱学分析分别鉴定为:没食子酸(1)、tachioside(2)、isotachioside(3)、canthoside D(4)、3,5-二甲氧基-4-羟基苯基-1-O-β-D-吡喃葡萄糖苷(5)、2,6-二甲氧基-4-羟基-苯酚-1-O-β-D-吡喃葡萄糖苷(6)、4-羟甲基-2,6-二甲氧基苯基-β-D-吡喃葡萄糖苷(7)、丁香酸葡萄糖苷(8)、3-甲氧基苯乙醇-4-O-β-D-葡吡喃糖苷(9)、2-(4-hydroxy-3,5-dimethoxyphenyl)ethyl-β-D-glucopyranoside(10)、4,6-二羟基-2-O-(β-D-吡喃葡萄糖苷)苯乙酮(11)、松香(12)、顺式紫丁香苷(13)、(–)-(7R,8S)-guaiacylglycerol 8-O-β-Dglucopyranoside(14)和l-threo-guaiacylglycerol-8-O-β-glucopyranoside(15)。其中,化合物2~8和10~15为首次从密花豆属植物中分离得到。     

石柑子中酚酸类化学成分研究

对石柑子全草中的酚酸类化学成分进行研究。应用各种柱色谱及制备液相色谱等分离方法进行分离纯化,根据化合物的理化性质和波谱数据进行结构鉴定。结果从石柑子全草的甲醇提取物中共分离得到19个酚酸类化合物,分别鉴定为:苯甲酸(1)、对甲氧基苯甲酸(2)、对甲基苯甲酸(3)、对羟基苯甲酸(4)、香草酸(5)、丁香酸(6)、3,4,5-三甲氧基肉桂酸(7)、3,4-二甲氧基肉桂酸(8)、阿魏酸(9)、对羟基肉桂酸(10)、对羟基苯甲醛(11)、香兰素(12)、丁香醛(13)、对甲氧基苯丙酸(14)、对羟基苯丙酸(15)、(R)-2-羟基-1-(4-羟基-3-甲氧基苯)-1-丙酮(16)、3-羟基-1-(4-羟基-3-甲氧基苯)-1-丙酮(17)、对羟基苯乙醇(18)、邻苯二甲酸二异丁酯(19)。化合物1~4、6~19均为首次从该属植物中分离得到。     

藏波罗花化学成分的研究

从藏波罗花95％乙醇提取物分离得到11个化合物,通过理化性质及波谱方法分别鉴定为β-咔啉(1),6,7-二甲氧基-2-萘乙醇(2),6,7-二甲氧基-2-萘乙酸(3),9-hydroxy-δ-skytanthine (4),异角蒿素(5),二丁醇对苯二酯(6),(+)-连翘环乙酮(7),对羟基苯乙(8),cleroindicin D(9),4-甲氧基肉桂酸(10)和β-谷甾醇(11).以上化合物均首次从该植物中分离得到.     

水栀子果实化学成分研究(Ⅱ)

利用多种色谱学技术从水栀子Gardenia jasminoides var.radicans果实中分离得到11个化合物,并应用多种波谱学手段将它们的结构分别鉴定为Z-甲基-6-氧代-Z,4-庚二烯酸O-β-D-龙胆二糖苷(1)、jasminoside O(2)、3,5-二甲氧基-4-羟基-苯甲醛(3)、5-羟甲基糠醛(4)、(5R,2E)-5-羟基-2-甲基-庚-2-烯-1,6-二酮(5)、1-O-对香豆酰基葡萄糖苷(6)、6,7-二甲氧基-4-羟基-1-萘甲酸(7)、10-O-E-p-香豆酰京尼平苷酸(8)、6'-O-反式-肉桂酰基京尼平龙胆二糖苷(9)、丁香脂素(10)、松脂素(11)。以上化合物均为首次从该植物中分离得到。     

卵叶娃儿藤中的抗癌活性生物碱

从卵叶娃儿藤(Tylophora ovata (Lindl.) Hook. ex Steud.)根中分离得到 4个菲骈吲哚里西丁类生物碱,分别为tylophoridicine A (1)、娃儿藤宁(2)、氧甲基娃儿藤定(3)和娃儿藤定(4).经波谱分析并结合化学方法鉴定,其结构分别为:(13aR)-6-羟基-3,7-二甲氧基菲骈吲哚里西丁、 (13aS ,14R)-14-羟基-3,6,7-三甲氧基-菲骈吲哚里西丁、(13aS, 14S)-14-羟基-3,6,7-三甲氧基-菲骈吲哚里西丁和(13 aS,14S)-6,14-二羟基-3,7-二甲氧基-菲骈吲哚里西丁.化合物1为新化合物,化合物2-4为首次从该植物得到的化合物.经药理筛选,化合物1、3和4显示很强的抗癌活性.     

霍山石斛化学成分研究

研究霍山石斛Dendrobium huoshanense Tang et Cheng茎的化学成分。应用硅胶、Sephadex LH-20、MCI-gel、Rp-18结合Semi-prep HPLC技术进行分离纯化,从霍山石斛茎中分离得到29个化合物,分别鉴定为4,4′-二羟基-3,5-二甲氧基联苄(1)、batatasin Ⅲ(2)、5,4′-二羟基-3-甲氧基联苄(3)、二氢松柏醇二氢对羟基桂皮酸酯(4)、对羟基苯丙酸甲酯(5)、二氢松柏醇(6)、二氢阿魏酸(7)、松柏醛-4-O-β-D-吡喃葡萄糖苷(8)、4-烯丙基-2,6-二甲氧-苯基葡萄糖苷(9)、erythrosyringoylglycerol-4-O-β-D-glucopyranoside(10)、3,4,5-trihydroxyallylbenzene-3-O-β-D-glucopyranosyl-4-O-β-D-glucopyranoside(11)、(7S,8R)syringylglycerol-8-O-4′-sinapyl ether 4-O-β-D-glucopyranoside(12)、3,4-二羟基-5-甲氧基苯甲醛(13)、对羟基苯甲酸(14)、5-hydroxylated isobenzofuran-1(3H)-one(15)、3,5-二甲氧基-4-羟基-苯甲醛(16)、4-羟基-3-甲氧基苯甲醛(17)、3,4,5-trimethoxyphenol-1-O-β-D-glucopyranoside(18)、天麻苷(19)、丁香脂素(20)、丁香脂素-4-O-β-D-葡萄糖苷(21)、丁香脂素-4,4′-O-β-D-二葡萄糖苷(22)、柚皮素(23)、2,6-二甲氧基对苯醌(24)、5-羟甲基糠醛(25)、tetrahydro-5-oxo-2-furancarboxylic acid methyl ester(26)、焦谷氨酸甲酯(27)、川芎哚(28)和尿嘧啶核苷(29)。其中化合物5～19、21～29位为首次从该植物中分离得到,化合物8、10、11、15、16、18、26、28为首次从石斛属中分离得到。     

线叶旋覆花的化学成分研究(英文)

从线叶旋覆花(Inula lineariifolia Turcz.)地上部分的乙醇提取物中分离得到13个化合物,通过波谱学方法及参考文献对照分别鉴定为泽兰黄醇素(1)、菠叶素(2)、刚毛黄酮(3)、胡萝卜苷(4)、β-谷甾醇(5)、α-菠菜甾醇(6)、蒲公英甾醇乙酰酯(7)(、+)-丁香脂素(8)、去氢催叶萝芙叶醇(9)、安息香醛(10)、香荚兰醛(11)、4-羟基-35,-二甲氧基苯甲醛(12)和4-羟基-2,6-二甲氧基苯甲醛(13)。化合物1～13均为首次从该植物中分离得到。     

An acetophenone and three naphthalides from turkish Rhamnus libanoticus

A new acetophenone glycoside and two new naphthalide glycosides have been isolated from the bark of Turkish Rhamnus libanoticus together with 7-hydroxy-5-methoxyphthalide 7-O-β-D-glucoside. The structures of the new compounds were elucidated by spectroscopic methods as 2,6-dihydroxy-4-methoxyacetophenone 2-O-β- rutinoside, 8,9-dihydroxy-6-methoxynaphthalide 8-O-β-rutinoside, 8,9-dihydroxy-6-methoxynaphthalide 8-O-/3b-D glucoside, respectively.     

Triterpenes and lignans from the leaves of Styrax tonkinensis

Two triterpenes (1 and 2) and eight lignans (3–10) were isolated from the ethyl acetate-soluble fraction of the leaves of Styrax tonkinensis (Pierre) Craib ex Hartw (Styracaceae). Their structures were established as ursolic acid (1), pomolic acid (2), 3,3′-bis(3,4-dihydro-6-methoxy-2H-1-benzopyran) (3), rac-(8α,8′β)-4,4′-dihydroxy-3,3′-dimethoxylignan-9,9′-diyldiacetate (4), (-)-secoisolariciresinol (5), (+)-pinoresinol (6), 4,4′-dihydroxy-3,3′-dimethoxy-9-ethoxy-9,9′-epoxylignan (7), (2S,3R, 4R)-4-[1-ethoxy-1-(4-hydroxy-3-methoxy)phenyl]methyl-2-(4-hydroxy-3-methoxy)phenyl-3-hydroxymethyl-tetrahydrofuran (8), (-)-neo-olivil-(9-O-9″)-seco-isolariciresinol (9) and isolariciresinol (10) based on MS, ¹H-and ¹³C-NMR spectral data. All these compounds (1–10) were firstly isolated from this plant, and compounds 2–5 and 7–9 were reported from the Styrax genus for the first time. Furthermore, the chemotaxonomic significance of the isolated compounds was discussed.     

蓍草化学成分研究

研究蓍草Achillea alpine L.全草的化学成分。采用大孔树脂、ODS、Sephadex LH-20凝胶柱色谱和pre-HPLC等方法分离与纯化,运用NMR、MS等波谱技术鉴定化合物结构。从蓍草95%乙醇提取物中分离得到16个化合物,分别是(2 E,4 E)-N-(2-methylbutyl)deca-2,4-dienamide(1)、墙草碱(2)、(E,E,Z)-2,4,8-decatrienoicacid isobutylamide-8,9-dehydropellitorine(3)、N-2′-methylbutyl-(E,E)-2,4-decadienam(4)、methyl-(E,E)-2,4,9-oxooctadeca-10,12-dienoate(5)、(S)-14-(E,E)-10,12-methyl 14-hydroxy-9-oxo-octadeca-10,12-dienoate(6)、(E,E)-2,4-undecadiene-8,10-diynamide-N-(2-methylpropyl)(7)、(E,E)-2,4-decadienoic acid p-hydroxyphenethylamide(8)、sinapyl alcohol diisovalerate(9)、(S)-13-hydroxyoctadeca-(Z,E)-9,11-dienoic acid(10)、(E,E)-2,4-decadienamide acid p-methoxyphenethylamide(11)、erythro-N-isobutyl-4,5-dihydroxy-2-(E)-decenamide(12)、3-O-阿魏酰-奎宁酸(13)、肉桂酸(14)、绿原酸(15)、3-O-咖啡酰-5-O-阿魏酰奎宁酸(16)。化合物1是一个新的酰胺类化合物;化合物4~6、9、10、12、13、16为首次从该属植物中分离得到;化合物8、11为首次从蓍草中分离得到。化合物1~11在四种不同的胃癌细胞株上进行细胞毒活性筛选,结果显示化合物2、5与9在50μM时对MGC-803细胞株具有较弱抑制活性,其抑制率依次为38.7%、34.7%、31.5%。     

Prenylated flavonoids of the leaves of Macaranga conifera with inhibitory activity against cyclooxygenase-2

Two prenylated flavonoid derivatives, 5-hydroxy-4'-methoxy-2",2"-dimethylpyrano-(7,8:6",5")flavanone (1) and 5,4'-dihydroxy-[2"-(1-hydroxy-1-methylethyl)dihydrofurano]-(7,8:5",4")flavanone (2), were isolated from an ethyl acetate-soluble extract of the leaves of Macaranga conifera using an in vitro activity-guided fractionation procedure based on the inhibition of cyclooxygenase-2. Also obtained were eight known compounds, 5,7-dihydroxy-4'-methoxy-8-(3-methylbut-2-enyl)flavanone (3), lonchocarpol A (4), sophoraflavanone B (5), 5,7-dihydroxy-4'-methoxy-8-(2-hydroxy-3-methylbut-3-enyl)flavanone (6), tomentosanol D (7), lupinifolinol (8), isolicoflavonol (9), and 20-epibryonolic acid (10). The structures of compounds 1 and 2 were determined using spectroscopic methods. All isolates were tested for their inhibitory effects against both cyclooxygenases-1 and -2, and selected compounds were evaluated in a mouse mammary organ culture assay.     

Chemical constituents of Polygala tenuifolia roots and their inhibitory activity on lipopolysaccharide-induced nitric oxide production in BV2 microglia

A methanolic extract of the roots of Polygala tenuifolia (Polygalaceae) significantly attenuated nitric oxide (NO) production in lipopolysaccharide (LPS)-stimulated BV2 microglia cells. Five xanthones, 1-hydroxy-7-methoxyxanthone (1), 3,6-dihydroxy-1,2,7-trimethoxyxanthone (2), 1,3,6-trihydroxy-2,7-dimethoxyxanthone (3), 1,7-dihydroxy-2,3-dimethoxyxanthone (4) and 1,7-dihydroxy-3-methoxyxanthone (5), and five phenylpropanoids, 4-hydroxy-3-methoxypropiophenone (6), methyl 4-hydroxy-3-methoxycinnamic acid (7), 3,4,5-trimethoxycinnamic acid (8), 4-methoxycinnamic acid (9) and β-d-(3-O-sinapoyl) fructofuranosyl-α-d-(6-O-sinapoyl)glucopyranoside (10), were isolated from CHCl(3) fraction using bioactivity-guided fractionation. Among these compounds, compounds 1, 2, 4, 5 and 7 showed significant inhibitory effects on LPS-induced NO production in BV2 microglia cells at the concentration ranging from 10.0 to 100.0 μM.     

灵芝液态深层发酵产物中10种不饱和脂肪酸类化合物的鉴定

通过规模化液态深层发酵获得灵芝发酵产物,采用多种硅胶色谱柱层析及重结晶的方式,从中分离得到10个化合物。通过核磁、质谱等波谱分析,鉴定出这些化合物均属于含羟基或酮基的不饱和脂肪酸类化合物,分别为(9S,10R,11E,13R)-9,10,13-trihydroxyoctadec-11-enoic acid（1）和(9S,10R,11E,13S)-9,10,13-trihydroxyoctadec-11-enoic acid（2）的混合物、12S^*,13S^*-dihydroxy-9-oxo-10(E)- octadecenoic acid（3）、9R*,10R*-dihydroxy-13-oxo-11(E)-octadecenoic acid（4）、12S*,13R*-dihydroxy- 9-oxo-10(E)-octadecenoic acid（5）、9S*,10R*-dihydroxy-13-oxo-11(E)-octadecenoic acid（6）、10(S)-hydroxy-8(Z)-octadecenoic acid（7）、12-oxooctadeca-8,10-dienoic acid（8）、9,12-dihydroxy-10-eicosenoic acid（9）和9-oxooctadeca-10,12-dienoic acid（10）。这些化合物均为首次从灵芝发酵产物中获得,且具有不同程度的体外抗肿瘤活性。其中,化合物8和化合物10对L1210细胞增殖抑制的IC₅₀值分别为13.00μmol/L和16.88μmol/L,对K562细胞增殖亦有良好的抑制效果,是具有抗肿瘤潜力的天然产物。     

Molecular Cloning and Construction of agp Gene Deletion-mutant in Cyanobacterium Synechocystis sp. PCC 6803

Nine compounds were isolated from Elsholtzia blanda (Benth.) Benth. Their　structures were identified with spectral and chemical methods as follows: 5,6-dihydro-6-styry-2-pyrone (1), friedelin (2), 4-hydroxy-3-methoxystyrene (3), 5,2′-dimethoxy-6,7-methylene dioxyflavanone (4), 5-hydroxy-7-methoxy-6-O-［α- L -rhamnopyranosyl(1→2)-β- D -fucopyranosyl］ flavone glycoside (5), 5,5′-dihydroxy-7-acetoxyl-6,8,3″,3″-tetramethylpyran　(3′,4′)　flavone (6), 5,5′-dihydroxy-7-(α-methyl) butyroxyl-6,8,3″,3″-tetramethylpyran (3′,4′) flavone (7), 5,5′-dihydroxy-6,7-methylenedioxy-8,3″,3″-trimethylpyran　(3′,4′)　flavone (8), glucosyringic acid (9). Among them, 6, 7 and 8 are new compounds, named as sifanghaoine Ⅰ,Ⅱ and Ⅲ, respectively.     

石菖蒲的化学成分研究

运用色谱法从石菖蒲根茎提取物中分离得到18个化合物,经波谱学分析鉴定为:(7S,8R)-4,9’-di-hydroxyl-3,3’-dimethoxyl-7,8-dihydrobenzofuran-1’-propylneolignan(1),(7S,8R)-4,9’-dihydroxyl-3,3’-dimethoxyl-7,8-dihydrobenzofuran-1’-propylneoligan-9-O-β-D-glucopyranoside(2),7’-hydroxylariciresinol-9-acetate(3),5-羟基-3,7,4’-三甲氧基黄酮(4),野漆树苷(5),紫云英苷(6),松属素-3-O-芸香糖苷(7),山奈酚-3-O-芸香糖苷(8),德钦红景天苷(9),isoschaftoside(10),5-羟甲基糠醛(11),反式桂皮酸(12),3,7-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oicacid(13),3,7-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oic acid methyl ester(14),环阿屯醇(15),胡萝卜苷(16),羽扇豆醇(17),(22E,24R)-ergosta-5,7,22-trien-3β-ol(18)。除化合物4、11和16外,其余15个化合物均为首次从该植物中分离得到。     

The chemical constituents of the fungus Stereum sp

Four new compounds, including a sesquiterpene and three aromatic compounds, and a known compound were isolated from a culture broth of the fungus Stereum sp. The novel sesquiterpene was determined to be stereumone A ((+)-2,3,4a,5,6,7,8a,9-octahydro-5-hydroxy-6,6,9-trimethyl-4,8a-epoxynaphtho[2,3-b]furan-8(8H)-one; 1), and the three new aromatic compounds were elucidated as 3,5-dihydroxy-4-(3-methylbut-2-enyl)benzene-1,2-dicarbaldehyde (2), 5,7-dihydroxy-6-(3-methylbut-2-enyl)isobenzofuran-1(3H)-one (3), butyl 2,4-dihydroxy-6-methylbenzoate (4), together with the known compound methyl 2,4-dihydroxy-6-methylbenzoate (5). The structures were established by spectroscopic methods including 2D-NMR techniques. Compounds 2 and 4 showed evident nematicidal activity against nematode Panagrellus redivivus.