苦山柰的二萜化学成分(英文)

从中药山柰的混杂品种苦山柰根茎分得一个新二萜苦山柰萜醇(marginatol 1) 和5个已知化合物：8(14),15-sanderacopimaradiene-1α,9α-diol(2), 8(14),15 -sanderacopimaradiene-1α,6β,9α-triol(3) 以及吉马酮(4), 对-甲氧基-肉桂酸乙酯(5) 和正-十五烷(6)。根据光谱数据(IR, MS, 1H-1H, 13C-1H NMR, NOESY 和 HMBC) 分析,确定苦山柰萜醇(1)的化学结构为8(14),15-isopimaradiene-6β-ol。化合物2,3 和 4是首次从该植物分得。     

我国姜科山柰属药用植物的研究

本文报道我国山柰属药用植物4种1变型。其中中药山柰的原植物是Kaempferiagalanga。云南部分地区有以大叶山柰K.latifolia和白山柰K.marginata f.alba与山柰混用。为此,作者就山柰药材进行了生药学研究,发现淀粉粒的形状和大小有所区别,薄层层析证明化学成分也不相同。     

苦葛根中的新三萜成分

目的　研究苦葛Pueraria peduncularis (Grah. ex Benth.) Benth.根的化学成分。方法　用各种色谱技术进行分离,得到3个五环三萜化合物,用IR,MS,¹HNMR,¹³CNMR（DEPT）,HMQC,HMBC,NOESY和NOE差谱鉴定化合物。结果　经光谱鉴定化合物1为3-O-［β-D-吡喃葡糖基(1→3)-O-β-D-吡喃葡糖醛酸基］-15α-羟基齐墩果-12烯-16-酮,化合物2为3β,15α-二羟基齐墩果-12烯-16-酮,化合物3为3β,16β-二羟基齐墩果-12烯-15-酮。结论　1和3为新化合物, 1被命名为苦葛皂苷A, 3被命名为苦葛二醇, 2为首次从苦葛根中分得。     

山荷叶中木脂素成分的研究

从陕西产山荷叶(Diphylleia sinensis Li.)根茎中分得9个木脂素和1个黄酮化合物,通过光谱分析证明化合物Ⅸ为新木脂素,即苦鬼臼素-1-乙基醚(picropodophyllin-1-ethyl ether),其它化合物分别为鬼臼毒素(podophyllotoxin,Ⅰ)、异苦鬼臼酮(isopicropodophyllone,Ⅱ)、去氢鬼臼毒素(dehydropodophyllotoxin,Ⅲ)、山荷叶素(diphyllin,Ⅳ)、苦鬼臼素(picropodophyllin,Ⅴ)、鬼臼酯酮(podophyllotoxone,Ⅵ)、4′-去甲基鬼臼毒素(4′-demethylpodophyllotoxin,Ⅶ)、苦鬼臼素葡萄糖甙(picropodophyllin slucoside,Ⅷ)和山奈酚(kaempferol,Ⅹ)。其中化合物Ⅱ,Ⅵ,Ⅶ和Ⅷ为首次从山荷叶属植物中分得。     

苦绳二糖甙的结构研究

从苦绳(Dregea sinensis var.corrugata)的根茎中分得一个新的二糖甙,命名为苦绳甙乙(dregeoside B,Ⅰ),经光谱分析和化学反应证明其结构为12,20-二-O-异戊酰基托曼托甙元-3-O-α-L-夹竹桃吡喃糖-(1→4)-O-α-L-夹竹桃吡喃糖甙(12,20-di-O-isovaleryltomentogenin-3-O-α-L-oleandropyranosyl-(1→4)-O-α-L-oleandropyranoside)。     

岗松中的一个新黄酮醇苷类化合物

为了研究岗松的化学成分，采用硅胶、聚酰胺柱层析色谱和重结晶的方法对化合物进行分离纯化，通过理化性质和波谱技术鉴定化合物结构。分离并鉴定了8个化合物：6，8-二甲基山柰酚-3-O-α-L-鼠李糖苷(1)、槲皮素(2)、槲皮素-3-O-α-L-鼠李糖苷(3)、杨梅素(4)、杨梅素-3-O-α-L-鼠李糖苷(5)、没食子酸(6)、熊果酸(7)和1,3-二羟基-2-(2′-甲基丙酰基)-5-甲氧基-6-甲基苯(8)。其中，化合物1为新黄酮醇苷类化合物，化合物2～7为首次从该植物中分离得到，化合物8为首次从植物中分离得到。     

青钱柳地上部分的化学成分研究

从青钱柳Cyclocarya paliurus(Batal)ljinskaja.地上部分分离出14个化合物,通过NMR波谱方法和理化性质考察分别鉴定为山柰酚(1),山柰酚-3-O-α-L-吡喃鼠李糖苷(2),山柰酚-3-O-β-D-吡喃半乳糖苷(3),山柰酚-3-O-β-D-吡喃葡萄糖苷(4),山柰酚-3-O-α-L-(4′′-E-p-香豆酰基)吡喃鼠李糖苷(5),青钱柳酸B(6),阿江榄仁酸(7),2α,3β,23-三羟基-12-烯-28-乌苏酸(8),2α-羟基乌苏酸(9),齐墩果酸(10),槲皮素(11),异槲皮苷(12),β-谷甾醇(13),胡萝卜苷(14)。化合物2、3、5和8为首次从青钱柳属中分离得到。     

中药材山柰的X衍射Fourier图分析

每种中药材中均含有数十种乃至上百种成分,是一个多组分系统。X衍射将提供一种既能反映中药材整体固有结构特征,又能表现来自其局部成分变化的图谱化与数值化的方法。它将在衍射空间中实现中药材的鉴定。考虑到中药材的品种、产地、生长年限、采集季节等物候因素的影响,本研究选择了不同产地和采集时间的植物药山柰与苦山柰的6个样品进行X衍射Fourier图分析。获得了可用于山柰与苦山柰鉴别的特征标记峰与衍射模糊图形。研究结果表明,X衍射Fourier图分析法尚可用于性状与组织结构相似、化学成分相近的中药材的鉴别。     

升麻地上部分皂苷类成分研究

目的为开发中药升麻(Cimicifuga foetida L.)的地上部分资源,从中寻找新的天然活性成分。方法利用各种色谱技术进行分离纯化,根据理化性质和各种波谱技术辅以化学方法进行结构鉴定。结果从80%的乙醇提取物中分得5个升麻三萜皂苷类成分。分别鉴定为:乙酰升麻醇-3-O-α-L-阿拉伯糖苷(1),乙酰升麻醇-3-O-β-D-木糖苷(2),25-脱水升麻醇-3-O-β-D-木糖苷(3),升麻醇-3-O-α-L-阿拉伯糖苷(4),升麻醇-3-O-β-D-木糖苷(5)。结论1为新化合物,2和4为首次从该植物中分得。     

睡菜中的抗炎成分

睡菜(Menyanthes trifoliata L.)是瑞典民间用于治疗肾炎的一种传统药用植物,其粗提物对体外前列腺素合成具明显的抑制作用。从该植物的根茎中分得8个化合物,经理化和光谱分析、分别鉴定为白桦脂酸(betulinicacid,1),白桦脂醇(betulin,2),番木鳖甙(loganin,3),睡菜根甙乙(foliamenthin,4),蔗糖(sucrose,5),番木鳖甙元(loganetin,6)。化合物7和8尚在鉴定中,其中化合物5和6为首次从该植物中分得。除对以上8个化合物进行了体外前列腺素生物合成抑制作用的筛选外,并对该植物中的另外2个化合物即羽扇豆醇型三萜α-羽扇豆醇(9)和β-羽扇豆醇(10)亦进行了筛选。结果表明只有羽扇豆醇型三萜1,2,9和10具抑制作用,其中1最有效,其半数抑制浓度IC50为101μM,对照品阿斯匹林的IC₅₀为1879μM,其余3个三萜的IC₅₀分别为白桦脂醇(2)119μM,α-羽扇豆醇(9)为130μM,β-羽扇豆醇(10)为134μM。同时还对羽扇豆醇型三萜类对体外前列腺素生物合成抑制作用作了构效关系的探讨。     

Scropolioside-D2 and harpagoside-B: two new iridoid glycosides from Scrophularia deserti and their antidiabetic and antiinflammatory activity

Five iridoid glycosides, including the two new compounds scropolioside-D(2) (1) and harpagoside-B (2), were isolated from the aerial parts of Scrophularia deserti DEL (Scrophulariaceae). Their structures were elucidated on the basis of spectral data to be 6-O-[2",4"-di-O-acetyl-3"-O-trans-cinnamoyl)-alpha-L-rhamnopyranosyl]-8 alpha-hydroxymethyl-1 alpha,5 beta,6 alpha,7 alpha,9 beta-pentahydro-7(8)-epoxy-2-oxaind-3-ene-1-O-beta-D-glucopyranoside-6'-O-acetate (1) and 5-O-beta-hydroxy-8-O-beta-trans-cinnamoyl-8 alpha-methyl-1,6,7,9-tetrahydro-2-oxaind-3-ene-1-O-beta-D-glucopyranoside (2), respectively. In addition, three more iridoid glycosides, scropolioside-D (3), koelzioside (4), and 8-O-acetyl-harpagide (5), were also isolated and characterized from this source. The biological activity and the structure activity relationship of the compounds were also studied, and scropolioside-D (3) and harpagoside-B (2) were found to possess significant antidiabetic and antiinflammatory activity, respectively.     

Three major urinary metabolites of sinomenine in rats

Urinary metabolites of sinomenine were investigated in rats after intragastric administration. Three major metabolites were obtained and characterised as 4-hydroxy-3,7,7-trimethoxy-17-methyl-(9alpha,13alpha,14alpha)-morphinan-6-one (1), 7,8-didehydro-4-hydroxy-3,7-dimethoxy-17-methyl-N-oxide-(9alpha,13alpha,14alpha)-morphinan-6-one (2), and 7,8-didehydro-4-hydroxy-3,7-dimethoxy-(9alpha,13alpha,14alpha)-morphinan-6-one (3). Their structures have been elucidated on the base of spectral analysis, among which 1 and 2 were new compounds.     

马尾松松针中木脂素苷的分离与结构鉴定

目的研究松科(Pinaceae)植物马尾松(PINUS MASSONIANA Lamb.)松针(pine needles)的化学成分。方法利用DIAION HP-20,TOYOPEARL HW-40等色谱技术分离纯化,根据化合物的理化性质和光谱数据(UV,IR,MS,^{1H-1<>/supH COSY,HMQC,DEPT,HMBC和ORD等)进行结构鉴定。结果从马尾松松针水煎液的正丁醇萃取部位分离得到3个化合物,分别鉴定为化合物4(massonianoside A):(7S,8R)-3,4,9′-三羟基-3-甲氧基-7,8-二氢苯并呋喃-1′-丙醇基新木脂素-9-o-α-L-鼠李糖苷;化合物5(massonianoside C):(7S,8R)-9,9′-二羟基-3,3′-二甲氧基-7,8-二氢苯并呋喃-1′-丙醇基新木脂素-4-o-α-L-鼠李糖苷;化合物6(cedrusin-4-o-β-glucoside):(7S,8R)-3,9,9′-三羟基-3-甲氧基-7,8-二氢苯并呋喃-1′-丙醇基新木脂素-4-o-β-D-葡糖苷。结论化合物4和5为新化合物。}     

Three new diterpenoids from Coleus forskohlii Briq

Three new diterpenoids, forskolin G(2), forskolin H(3), forskolin I(4), were isolated from the whole plant of the Coleus forskohlii Briq., and their structures were elucidated as 1alpha,6beta-diacetoxy-8,13-epoxylabd-14-en-11-one, 1alpha-hydroxy-6beta,7beta-diacetoxy-8,13-epoxylabd-14-en-11-one, and 1alpha,9alpha-dihydroxy-6beta,7alpha-diacetoxy-8,13-epoxylabd-14-en-11-one on the basis of spectral data.     

Inhibitory Constituents against Cyclooxygenases fromAralia cordata Thunb

Seven diterpenes, four polyacetylenes, a lipid glycerol, and two sterols were isolated from the methylene chloride fraction of the root of Aralia cordata. Their chemical structures were determined as (-)-pimara-8(14),15-dien-19-oic acid (2), pimaric acid (3), (-)-kaur-16-en-19-oic acid (4), 17-hydroxy-ent-kaur-15-en-19-oic acid (9), 7alpha-hydroxy-(-)-pimara-8(14),15-dien-19-oic acid (10), 16alpha,17-dihydroxy-(-)-kauran-19-oic acid (11), 16-hydroxy-17-isovaleroyloxy-ent-kauran-19-oic acid (12), falcarindiol (5), dehydrofalcarindiol (6), dehydrofalcarindiol-8-acetate (7), falcarindiol-8-acetate (8), alpha-mono palmitin (13), stigmasterol (1), and daucosterol (14) by the spectral evidences. These compounds were tested with COX-1 and COX-2 inhibition assays. This study found that compounds 2, 4, 5, 6, 7, 8, and 10 inhibited COX-1 dependent conversion of the exogenous arachidonic acid to PGE2 in a dose-dependent manner with IC50 values of 134.2 microM, 121.6 microM, 170 microM, 50.4 microM, 11.7 microM, 99.6 microM, and 69.6 microM, respectively. But, most of these compounds weakly inhibited COX-2 dependent PGE2 generation. Among them, only compound 4 showed relatively significant inhibitory activity (IC50: 127.6 microM).     

西南文殊兰(Crinum latifalium L.)化学成分研究

目的研究西南文殊兰的化学成分。方法采用多种层析方法分离西南文殊兰乙醇提取物的化学成分,通过其化合物理化性质及各种波谱数据鉴定化合物结构。结果共分离鉴定了15个化合物,它们的结构鉴定为：-sitosterol（1）,daucosterol（2）,5-methyl-2,4（1H,3H）-pyrimidinedione（3）,-purine（4）,p-hydroxybenzonic acid（5）,ethyl 4-hydroxybenzoate（6）,cinnamyl D-glucopyranoside（7）,benzyl-D-glucopyranoside（8）,adenosine（9）,uridine（10）,Z-cinnamic acid（11）,5-O-nitrosouridine（12）,3-methyl-1H-pyrimidine-2,4-dione（13）,N-methyl-benzamide（14）,E-cinnamic acid（15）。结论化合物3~4、7~10、12~14为首次从西南文殊兰中分离得到。     

三小叶翠雀花中生物碱成分的研究

目的　研究三小叶翠雀花(ＤｅｌｐｈｉｎｉｕｍｔｒｉｆｏｌｉｏｌａｔｕｍＦｉｎｅｔｅｔＧａｇｎｅｐ)全草中的生物碱化学成分。方法　离子交换树脂法提取总碱,硅胶层析法分离,波谱法鉴定结构。结果　从中分得10个已知Ｃ19-二萜生物碱。分别为氨茴酰牛扁碱(ａｎｔｈｒａｎｏｙｌｌｙ ｃｏｃｔｏｎｉｎｅ)1、牛扁碱(ｌｙｃｏｃｔｏｎｉｎｅ)2、ｄｅｌｓｅｍｉｎｅＡ(3)、ｄｅｌｓｅｍｉｎｅＢ(4)、ｇｉｒａｌｄｉｎｅＧ(5)、ｊｉｕｆｅｎｇｄｉｎｅ(6)、ｂｒｏｗｎｉｉｎｅ(7)、14-ｄｅｈｙｄｒｏ ｂｒｏｗｎｉｉｎｅ(8)、ｄｅｌｓｏｌｉｎｅ(9)和ｄｅｌｐｈａｔｉｎｅ(10)。结论　应用光谱法和与已知物ＴＬＣ对照的方法鉴定了所有化合物的结构。     

Two new dammarane triterpene glycosides from the rhizomes of Panax notoginseng

Two new dammarane triterpene glycosides named notoginsenosides Rw 1 (1) and Rw 2 (2) were isolated from the rhizomes of Panax notoginseng, together with 20 known compounds including protopanaxadiol (3), protopanaxatriol (4), ginsenosides Rb1 (5), Rd (6), Re (7), Rg1 (8), Rg2 (9), 20-(S)-Rg3 (10), 20-(R)-Rg(3) (11), Rh1 (12), Rh4 (13), Rf (14), 20-O-glucopyranosyl Rf (15), notoginsenosides R1 (16), R2 (17), T5 (18), S (19), T (20), and Fa (21), and koryoginsenoside R1 (22). Based on FABMS, HRFABMS, IR, (1)H, 13C, and 2D-NMR (HSQC, HMBC, and COSY) spectral data, the structures of the new compounds were elucidated as 6-O-beta-d-xylopyranosyl-20-O-beta-d-xylopyranosyl-(1 --> 6)-beta-d-glucopyranosyldammar-24-ene-3beta,6alpha,12beta,20(S)tetraol (1) and 6-O-beta-d-xylopyranosyl-(1 --> 2)-beta-d-glucopyranosyldammar-22-ene-(trans)-3beta,6alpha,12beta,20(S), 25-pentaol (2). Compounds 3, 4, 13, and 22 were isolated from P. notoginseng for the first time.     

A new isopimarane-type diterpene and a new natural atisane-type diterpene from Excoecaria agallocha

From the woods of Excoecaria agallocha, a new isopimarane-type diterpene, 3alpha,11beta-dihydroxy-ent-isopimara-8(14),15-dien-2-one and a new natural atisane-type diterpene, 16beta-hydroxy-ent-atisan-3-one were isolated together with three known compounds, ribenone, ent-labda-8(17),13E-diene-3beta,15-diol, and ent-3beta-hydroxybeyer-15-ene-2,12-dione. Their structures were determined by spectral data and x-ray crystallography evidence.     

Bioactive terpenes from the roots of Chloranthus henryi

12,15-Epoxy-5alpha H,9beta H-labda-8(17),13-dien-19-oic acid (1) and 14-methoxy-15,16-dinor-5alpha H,9alpha H-labda-13(E),8(17)-dien-12-one (2), two new labdane-type diterpenes, and 1alpha-hydroxy-8,12-epoxyeudesma-4,7,11-triene-6,9-dione (3), one new eudesmane-type sesquiterpene, were isolated from Chloranthus henryi Hemsl, along with two known compounds, 8beta H-eudesma-4(14),7(11)-dien-12,8-olide (4) and 8beta-hydroxyeudesma-4(14),7(11)-dien-12,8-olide (5). Their structures were established by a combination of 1D- and 2D-NMR spectroscopic techniques. The new compounds 2, 3 and the known compound 4 exhibited antitumor activities against Hela and K562 human tumor cell lines.