988 resultados para 10-1
Resumo:
本论文对滇金足草(Goldfussia yunnanensis)、凋缨菊(Camchaya loloana)和长喙吴萸(Evodia vestia)的化学成分进行了研究,通过色谱分离得到40个化合物。主要基于波谱数据鉴定了它们的结构,其中10个为新化合物。 1.从滇金足草地上枝叶的95%乙醇提取物中共分离鉴定了16个化合物:泽漆内酯A(1)、18-羟基泽漆内酯A(2)、18-氧代泽漆内酯A(3)、18-羟基-3-O-β-D-吡喃葡萄糖-泽漆内酯A(4)、3-O-β-D-吡喃葡萄糖-泽漆内酯A(5)、3-O-β-D-吡喃半乳糖-泽漆内酯A(6)、6-E-肉桂酰哈巴俄苷(7)、E-哈巴俄苷(8)、5,6-异亚丙二氧基哈巴俄苷(9)、β-谷甾醇(10)、β-胡萝卜苷(11)、齐墩果酸(12)、肉桂酸(13)、麦角固醇(14)、硬脂酸(15)和丁二酸(16)。其中2-7为新化合物。5,6-异亚丙二氧基哈巴俄苷(9)以人工产物形式得到。 2.从凋缨菊地上枝叶的95%乙醇提取物中分离并鉴定了13个化合物:凋缨菊内酯A~C (17-19)、1β-乙酰基凋缨菊内酯C(20)、b-谷甾醇(10)、β-胡萝卜苷(11)、羽扇豆醇(21)、桦木醇(22)、桦木酸(23)、芥子醇(24)、紫丁香苷(25)、咖啡酸(26)和熊果酸(27)。其中化合物17-20为桉叶烷内酯类新化合物。化合物17、18、20对细胞株HepG2的GI50依次为7.80、7.08、4.99 µg/mL。 3.从长喙吴萸(E. vestia)地上枝叶的95%乙醇提取物中分离并鉴定了13个化合物:佛手内酯(28)、花椒毒素(29)、异茴芹内酯(30)、七叶内酯(31)、东莨宕素(32)、瑞香素(33)、异紫花前胡内酯(34)、茵芋碱(35)、山刈碱(36)、白鲜碱(37)、黄柏酮(38)、柠檬苦素(39)和对羟基苯甲醛(40)。 4.综述了1990—2007年期间从菊科植物中发现的桉叶烷-12,6内酯的化学结构、生物活性、生物转化及化学合成方面的研究进展。 Phytochemical investigation on Goldfussia yunnanensis, Camchaya loloana, and Evodia vestia, led to the isolation of 40 compounds, 10 of which were new ones. 1. Six new compounds were isolation from 95% ethanolic extract of the aerial parts of G. yunnanensis, and identified as 18-hydroxyhelioscopinolide A (2), 18-oxohelioscopinolide A (3), 18-hydroxy-3-O-β-D-glucopyranosylhelioscopinolide A (4), 3-O-β-D-glucopyranosylhelioscopinolide A (5),3-O-β-D-Galactopyranosyl helioscopinolide A (6), 6-O-trans-cinnamoyl E-harpagoside (7). The known compounds isolated were helioscopinolide A (1), E-harpagoside A (8), 5,6-isopropylidene E-harpagoside A (9), β-sitosterol (10), β-daucosterol (11), oleanolic acid (12), cinnamic acid (13), ergosterol (14), stearic acid (15) and succinic acid (16). Compound 9 was an artifact. 2. Four new compounds, loloanolides A – C (17 - 19) and 1β-acetoxy-loloanolide C (20), were isolation from 95% ethanolic extract of the aerial parts of C. loloana. The known ones were β-sitosterol (10), β-daucosterol (11), lupeol (21), betulin (22), betulinic acid (23), sinapyl (24), syringin (25), caffeic acid (26) and ursolic acid (27). The GI50 values of compounds 17, 18 and 20 to HepG2 cell line were 7.80, 7.08 and 4.99 µg/mL, respectively. 3. Thirteen were isolated from 95% ethanolic extract of the aerial parts of E. vestia for the first time. They were determined to be bergapten (28), xanthotoxin (29), isopimpinellin (30), esculetin (31), scopoletin (32), daphnetin (33), marmesin (34), skimmianine (35), confusameline (36), dictamine (37), obacunone (38), limonin (39) and p-hydroxy phenyl aldehyde (40). 4. The structures, biological activities, biotransformation and chemical syntheses of eudesmane-12, 6-olides from the Asteraceae during 1990-2007 were reviewed.
Resumo:
本文对禄春安息香(Styrax macranthus)种子和攀援孔药花(Porandra scandens)全草的化学成分进行了研究,共获得30个化合物,其中2个为新化合物。 从禄春安息香种子95%乙醇提取物中分离并鉴定了12个化合物,其中2个新化合物鉴定为3-[7-methoxy-2-(3,4-methylenedioxy phenyl) benzofuran-5-yl] propyl 3-[7-methoxy-2-(3,4-methylenedioxyphenyl)benzofuran-5-yl] propanoate (1) 和去甲氧基-egonol-龙胆双糖甙 (2);已知化合物分别为2-(3,4-二氧亚甲基苯基)-5-甲酰基-7-甲氧基-苯并呋喃 (3)、egonol (4)、去甲氧基-egonol (5)、去甲基-egonol (6)、egonol-葡萄糖甙 (7)、egonol-龙胆双糖甙 (8)、egonol-龙胆三糖甙 (9)、豆甾醇 (10)、二十四烷酸 1-甘油酯 (11) 和胡萝卜甙 (12)。生物活性测试发现,化合物2具有促进雌激素E2合成的作用。 从攀援孔药花全草95%乙醇提取物中分离并鉴定了19个化合物:(2S,3S,4R)-2-[(2R)-2-羟基-二十一烷酰基氨基]-二十一烷-1,3,4-三醇 (13)、(2S,3S,4R)–2–二十四烷酰基氨基-十八烷-1,3,4-三醇 (14)、胡萝卜甙 (12)、β-谷甾醇 (15)、(20S,22E,24R)-5α,8α-表二氧-麦角甾-6,22-二烯-3β-醇 (16)、6β-羟基-豆甾-4-烯-3-酮 (17)、十六烷酸 1-甘油酯 (18)、桦木酸 (19)、大黄素 (20)、二十二烷酸 1-甘油酯 (21)、对羟基苯甲醛 (22)、十七烷酸 1-甘油酯 (23)、金色酰胺醇乙酸酯(24)、十九烷酸 1-甘油酯 (25)、棕榈酸 (26)、(E)-p-香豆酸 (27)、(22E,24S)-24-麦角甾醇-7,22-二烯-3β,5α,6β-三醇 (28)、2-去氧-β-蜕皮激素 (29)和auranamide (30)。 综述了近十年来发现的2-芳基苯并呋喃类新木脂素的结构特征、来源、生物活性和化学全合成。 Phytochemical investigation on the seeds of Styrax macranthus and the whole plants of Porandra scandens led to the isolation of thirty compounds, two of which were new ones. Two new 2-aryl benzofuran derivatives, 3-[7-methoxy-2-(3,4-methylenedioxy phenyl) benzofuran-5-yl]propyl 3-[7-methoxy-2-(3,4-methylenedioxyphenyl)benzo furan-5-yl]propanoate (1) and demethoxy egonol gentiobioside (2), were isolated from the 95% aqueous ethanolic extract of the seeds of Styrax macranthus, together with 7-methoxy-2-(3,4-methylenedioxyphenyl) benzofuran-5-carbaldehyde (3), egonol (4), demethoxy egonol (5), demethyl egonol (6), egonol glucoside (7), egonol gentiobioside (8), egonol gentiotrioside (9), stigmasterol (10), 2,3-dihydroxypropyl tetracosoate (11), and daucosterol (12). In vitro test, compound 2 promote the synthesis of estrogen E2. Nineteen compounds were isolated from the 95% aqueous ethanolic extract of the whole plant of Porandra scandens for the first time. Their structures were identified as (2S,3S,4R)-2-[(2R)-2-hydroxy-heneicosanoylamino]-1,3,4- heneicosanetriol (13), (2S,3S,4R)-2-tetracosanoylamino-1,3,4-octadecanetriol (14), daucosterol (15), β-sitosterol (12), (20S,22E,24R)-5α,8α-epidioxy-ergosta-6,22-diene- 3β-ol (16), 6β-hydroxylstigmast-4-en-3-one (17), 1-glycerol-1-hexadecoate (18), betulinic acid (19), emodin (20), 1-glycerol-1-docosoate (21), p-hydroxybenzaldehyde (22), 1-glycerol-1-heptadecoate (23), aurantiamide acetate (24), 1-glycerol-1- nonadecoate (25), palmatic acid (26), (E)-p-coumaric acid (27), (22E,24S)- 24-metbylcbolesta-7,22-diene-3β,5α,6β-triol (28), 2-deoxycrustecdysone (29), and auranamide (30). The characteristic, natural resource, bioactivity, and the total synthesis of 2-aryl benzofurans were reviewed.
Resumo:
钮子瓜(Zehneria maysorensis Arn.)是一种常用的中草药,其性味苦、凉,主要功效为清热利湿、散风止痛,主治膀胱炎、头痛。体外活性筛选实验表明,袋花忍冬(Lonicera saccata Rehd.)95%乙醇提取物的乙酸乙酯部分对血管紧张素转化酶显示较强的抑制活性。为明确钮子瓜的药用物质基础和袋花忍冬中具有ACE抑制活性的成分,首次对两个植物的成分进行了研究。 1. 从钮子瓜95%乙醇提取物中主要通过色谱方法首次分离了14个化合物,通过波谱方法鉴定为(2S,3S,4R,10E)-2-[(2R)-2-羟基二十四烷酰基氨基]-10-十八烷-1,3,4-三醇(1)、(2S,3S,4R)-2-二十四烷酰基氨基-十八烷-1,3,4-三醇 (2)、胡萝卜苷(3)、swertish (4)、苯甲酸(5)、水杨酸(6)、loliolide (7)、胸腺嘧啶(8)、尿嘧啶(9)、(23Z)-9,19-环阿尔廷-23-烯-3β,25-二醇(10)、(20S,22E,24R)-5α,8α-表二氧-麦角甾-6,22-二烯-3β-醇(11)、十六烷酸 1-甘油酯(12)、大豆脑苷Ⅰ(13)和(22E,24S)-24-甲基-5α-胆甾-7,22-二烯-3β,5α,6β-三醇(14)。其中化合物4为一黄酮碳苷,具有旋转异构现象,有止痛作用;化合物6具有抗炎、镇痛、减热的活性,它们可能是钮子瓜药用物质基础的一部分。 2. 从袋花忍冬95%乙醇提取物中首次分离并鉴定了16个已知化合物:胡萝卜苷(3)、(20S,22E,24R)-5α,8α-表二氧-麦角甾-6,22-二烯-3β-醇(11)、十六烷酸 1-甘油酯(12)、E-p-coumaryl behenate (15)、谷甾醇(16)、2,6-dihydroxyhumula-3(12), 7(13),9(E)-triene (17)、环阿尔廷-25-烯-3β,24ξ-二醇 (18)、二十四烷酸 (19)、2,4-二羟基-3,6-二甲基苯甲酸甲酯 (20)、乌苏酸 (21)、柚皮素 (22)、木犀草素 (23)、柏双黄酮(24)咖啡酸 (25)、洋芹素(26)和木犀草素-7-O-β-D-葡萄糖苷 (27)。其中木犀草素(23)和咖啡酸(25)含量较高,它们为抑制ACE活性的成分。 3.综述了黄酮碳苷的旋转异构现象。 Zehneria maysorensis is a folk medicine for the treatment of cystitis and headache. The ethyl acetate soluble fraction of the 95% ethanol extract of Lonicera saccata showed obvious ACE inhibitory activity in vitro. To reveal their active constitutents, they were subjected to chemically study. From the 95% ethanol extract of the whole plants of Zehneria maysroensis fourteen compounds were isolated for the first time. On the basis of spectral data and/or by comparison with authentic samples, they were characterized to be (2S,3S,4R,10E)-2-[(2R)-2-hydroxytetracosanoylamino]-10-octadecene-1,3,4-triol (1), (2S,3S,4R)-2-tetracosanoylamino-1,3,4-octadecanetriol (2), daucosterol (3), swertish (4), benzoic acid (5), salicylic acid (6), loliolide (7), thymine (8), uracil (9), (23Z)-9,19-cycloart-23-ene-3β,25-diol (10), (20S,22E,24R)-5α,8α-epidioxy-ergosta- 6,22-diene-3β-ol (11), 2,3-dihydroxypropyl hexadecoate (12), soya-cerebroside (13) and (22E,24S)-24-methyl-5α-cholesta-7,22-diene-3β,5α,6β-triol (14). Compound 4, a C-glycosylflavone, showed a very interesting rotational isomerism. Compounds 4 and 6 may be the active constituents of Zehneria maysorensis considering their sedative and anti-inflammation activity, respectively. From the whole plants of Lonicera saccata, sixteen compounds were isolated for the first time. On the basis of spectral data and/or by comparison with authentic samples, they were identified to be daucosterol (3), (20S,22E,24R)-5α,8α-epidioxy- ergosta-6,22-diene-3β-ol (11), 2,3-dihydroxypropyl hexadecoate (12), E-p-coumaryl behenate (15), β-sitosterol (16), 2,6-dihydroxyhumula-3(12),7(13),9(E)-triene (17), cycloart-25-ene-3β,24ξ-diol (18), tetracosanoic acid (19), methyl 2,4-dihydroxy- 3,6-dimethylbenzoate (20), ursolic acid (21), naringenin (22), luteolin (23), cupressuflavone (24), caffeic acid (25), apigenin (26) and luteolin-7-O-β-D- glucopyranoside (27). Luteolin (23) and caffeic acid (25) were the ACE inhibitory active constituents. Rotational isomerism for C-glycosylflavonoid was reviewed.
Resumo:
本论文由三部分共6 章组成。第一部分报道了余甘子、细叶草乌和土荆皮等三种药用植物的化学成分研究成果;第二部分报道了细叶草乌和土荆皮中分离得到的化合物的活性测试,以及这两种植物的质谱分析;第三部分概述了土荆皮的研究现状。第一部分包括1-3 章。在第1 章、第2 章和第3 章中分别报道了余甘子(Phyllanthus emblica L.) 、细叶草乌(Aconitum richardsonianum var.pseudosessiliflorum) 和土荆皮( pseudolarix kaempferi) 的化学成分。采用正、反相硅胶柱层析等各种分离方法,从余甘子中共分离出10 个化合物,其中1 个为新化合物,另外还有2 个为首次从该植物中分离得到。细叶草乌的化学成分研究尚未见报道,我们从该植物中共分离出15 个化合物,其中6 个为二萜生物碱,9个为非生物碱成分。从土荆皮中分离得到16 个化合物,其中8 个二萜、1 个三萜和7 个其它类型化合物,其中有4 个化合物为首次在该植物中分离得到;从土荆皮挥发油中分离鉴定出了22 个化合物,占挥发油总量的90%。第二部分包括4-5 章。第4 章报道了从细叶草乌和土荆皮中分离得到的13个化合物的药理活性研究,结果显示,展花乌头宁和土荆乙酸葡萄糖苷等表现出较高的组织蛋白酶K 抑制活性;土荆乙酸葡萄糖苷表现出较高的组织蛋白酶B抑制活性;8-去乙酰滇乌碱表现出较高的蛋白质酪氨酸磷酸酶抑制活性。第5 章报道了细叶草乌和土荆皮总浸膏的质谱( ESI-MS ) 分析,研究结果表明,ESI-MS 法可以简单快速地检测这两种植物的主要成分;通过ESI-MS2 分析初步探讨了一些化合物的裂解规律,尝试质谱在其结构测定中的具体应用。第三部分为第6 章。从化学成分、药理、构效关系、主要成分的定量分析、及其合成研究等方面概述了土荆皮的研究进展。 This dissertation consists of three parts. The first part elaborate thephytochemical investigation of three medicinal plants, Phyllanthus emblica L.,Aconitum richardsonianum var. pseudosessiliflorum and pseudolarix kaempferi. Thesecond part reported the bioassay of 13 constituents from Aconitum richardsonianumvar. pseudosessiliflorum and pseudolarix kaempferi, and ESI-MS analysis of these twoplant . The third part is a review on the research progress of pseudolarix kaempferi.The first part is composed of three chapters. Chapters 1-3 focus on the isolationand identification of chemical constituents from Phyllanthus emblica L., Aconitumrichardsonianum var. pseudosessiliflorum and pseudolarix kaempferi. 10 compoundsincluding a new tannin were isolated from the fruits of Phyllanthus emblica by repeatcolumn chromatography over normal and reversed phase silica gel, 2 of them werefirstly reported in this plant. The chemical constituents of Aconitum richardsonianumvar. pseudosessiliflorum never reported before, 15 compounds including 6 diterpenealkaloids were isolated and identified from the roots of this plant. 16 compoundsincluding 8 diterpenes , 1 triterpene and 7 other compounds were isolated from the bark of pseudolarix kaempferi, among them, 4 compounds were firstly reported fromthe EtOH extracts of this plant, and 22 compounds were identified from its essentialoil, representing 90% of the total essential oil.The second part includes chapters 4 and 5. Chapter 4 reported thepharmacological activities of 13 compounds isolated from Aconitum richardsonianumvar. pseudosessiliflorum and pseudolarix kaempferi. Results demonstrated that chasmanine and pseudolaric acid B-β-D-glucoside exhibit relatively high anti-Cathepsin K activities; pseudolaric acid B-β-D-glucoside exhibits relatively highanti-Cathepsin B activity; 8-deacetyl-yunaconitine exhibits relatively high anti-PTP1Bactivity. Chapter 5 reported the ESI-MS analysis of extractions from Aconitumrichardsonianum var. pseudosessiliflorum and pseudolarix kaempferi, it was showedthat ESI-MS can be used as an useful tool in analyzing the major constituents of thesetwo plant much quick and easy, in addition, the fragmentation rules of somecompounds were discussed, in order to find some applications of ESI-MS2 method in their structure determination.The third part is a review on the research progress of pseudolarix kaempferi,including the chemical constituents, pharmacology, structure-activity relationship(SAP), quantitative analysis and synthesis of the major constituents.
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本论文由三章组成。第一章介绍了中药蜘蛛香的化学成分的研究成果,第二章为羧甲基魔芋葡苷聚糖-壳聚糖为细胞膜的天冬酰胺酶人工细胞的研究,第三章综述了人工细胞在生物医学领域的应用。 第一章报道了中药蜘蛛香(Valeriana wallichii)根部乙醇提取物的化学成分,采用正、反相硅胶层析等分离方法和MS、NMR等多种波谱手段,从中共分离鉴定出17个化合物,分别为缬草素(valtrate,1),valechlorine(2),homobadrinal(3),baldrinal(4),乙酰缬草素(acevaltrate 5),valeriotetrate C(6),valeriotetrate B(7),对羟基苯乙酮(4'-hydroxy-acetophenone 8),7-hydroxy valtrate(9),8-methylvalepotriate(10),1,5-dihydroxy-3,8-epoxyvalechlorine A(11),二氢缬草素(didrovaltrate 12),胡萝卜苷(13),橙皮苷 (hesperidin 14),prinsepiol-4-O-β-D-glucopyranoside(15),longiflorone(16),乙基糖苷(17)。其中化合物6、7、10、和11为新化合物,化合物9、15、16为首次从该植物中得到。新化合物11为含有氯原子的刚性骨架环烯醚萜,并且确定了其绝对构型。 第二章报道了以羧甲基魔芋葡苷聚糖(CKGM)和壳聚糖(CS)为膜的固定化L-天冬酰胺酶人工细胞研究成果。利用羧甲基魔芋葡苷聚糖和壳聚糖两种生物相容性很好的天然多糖之间的静电吸引力,在非常温和的条件下制备成具有半透过性膜的人工细胞,将治疗儿童急性成淋巴细胞性白血病(ALL)的药物L-天冬酰胺酶包裹在内。通过考察温度和pH对人工细胞的影响,结果表明以CKGM- CS为膜的L-天冬酰胺酶人工细胞对温度和pH的稳定性和耐受性均高于自由酶,说明CKGM-CS对酶具有保护作用,而且小分子底物和产物可以自由进出膜内外,而包裹在膜内的生物大分子则不能泄露出来。 第三章综述了微囊化人工细胞的研究进展。 This dissertation consists of three parts. In the first part, the chemical constituents from the root of Valeriana wallichii were reported. In the second part, preparation and characteristics of L-Asparaginase Artificial cell were reported. The third part is a review on progress of microcapsule artificial cell. The first chapter is about the isolation and identification of the chemical constituents from the root of V. wallichii. Seventeen compounds were isolated from the ethanol extract of roots of V. wallichii through repeated column chromatography on normal and reversed phase silica gel. By the spectroscopic and chemical evidence, their structures were elucidated as valtrate (1), valechlorine (2), homobadrinal (3), baldrinal (4), acevaltrate (5), valeriotetrate C (6), valeriotetrate B (7), 4'-hydroxy-acetophenone (8), 7-hydroxy valtrate (9), 8-methylvalepotriate (10), 1,5-dihydroxy-3,8-epoxyvalechlorine A (11), didrovaltrate (12), daucosterol (13), hesperidin (14), prinsepiol-4-O-β-D-glucopyranoside (15), longiflorone (16), and ethyl glucoside (17). Among them, 6, 7, 10, and 11 are new compounds. 15, 16 and 9 were isolated from this plant for the first time. The absolute configuration of compound 11, an unusual iridoid bearing a C-10 chlor-group and an oxo-bridge connecting C-3 and C-8 resulting in a rigid skeleton, was confirmed. The second chapter is about the semi-permeable microcapsule of carboxymethyl konjac glucomannan-chitosan for L-asparaginase immobilization. Carboxymethyl konjac glucomannan-chitosan (CKGM-CS) microcapsules, which have good biocompatibility, prepared under very mild conditions via polyelectrostatic complexation, were used for immobilize L-asparaginase-a kind of drug for acute lymphoblastic leukemia (ALL). The activity and stability under different temperature and pH of the enzyme loaded-microcapsules were studied. The results indicated the immobilized enzyme has better stability and activity contrasting to the native enzyme. The study illustrates that the L-asparaginase could be protected in CKGM-CS microcapsules, the substrate and product could pass through the system freely.