二萜
- diterpene
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大戟属植物中二萜酯和倍半萜甙结构的2DNMR研究
2D NMR studies on diterpene ester and sesquiterpene Glucoside from the genus Euphorbia
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一个新的紫杉烷二萜化合物的NMR研究
NMR Study of a New Taxane Diterpene
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二萜生物碱的~(13)C核磁共振谱
~ ( 13 ) C Nuclear Magnetic Resonance of Diterpenoid Alkaloids
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天然C(19)-二萜生物碱的核磁共振谱(Ⅱ)
The natural c_ ( 19 ) - diterpenoid alkaloids and their NMR (ⅱ)
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一个新骨架的C(19)二萜内酯的晶体结构
Crystal Structure of a C_ ( 19 ) Diterpene with New Carbon Skeleton
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几个新乌头碱型&二萜生物碱的~(13)C核磁共振谱研究
~ ( 13 ) c NMR spectroscopic studies of several new diterpenoid alkaloids from Aconitum species
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美丽红豆杉二萜的研究Ⅰ.美丽红豆杉素A,B和C的结构测定
Studies on the Diterpenes from Taxus Mairei I. Structures of Taxamairins A , B and C
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香茶菜属二萜的2DNMR研究(1)
2D NMR study on the rabdosia diterpenoid ( 1 )
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两个特殊骨架的C(20)-二萜生物碱的全部~1H(~(13)C)核磁共振信号指定
Full Assignments of ~ 1H NMR and ~ ( 13 ) C NMR Spectra of Two Special Skeletal C_ ( 20 ) - Diterpenoid Alkaloids
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结果分离鉴定出1个二萜化合物diosbulbinB(V)。
Results A diterpenoid compound , diosbulbin-B ( V ) was isolated from the aqueous extract of Rhaponticum uniflorum and its structure was identified .
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紫杉醇是一种四环二萜酰胺类化合物,1992年底被美国FDA认证作为抗癌药物上市。
Taxol , a diterpene amide , has been approved for the treatment of cancers by FDA in 1992 .
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自毛叶香茶菜Rabdosiajaponica(Burm.f)Hara的干叶中分离出四个二萜化合物,其中两个是新的二萜,命名为毛叶香茶菜素A和B。
Four diterpenoids were isolated from the dried leaves of Rabdosia japonica ( Burm . f ) Hara .
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某些特定结构,如C(20)二萜生物碱中的恶唑烷环以及C(20)差向异构体等的~(13)cNMR谱特征;
~ ( 13 ) C NMR characteristics of some specific struc-tures , for example , oxazolidine ring and C_ ( 20 ) epimers of C_ ( 20 ) - type diterpene alkaloids ;
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一种新的HETISINE型二萜生物碱结构的NMR研究
NMR study on a new hetisine type diterpenoid alkaloid from Aconitum coreanum
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半边旗二萜类化合物5F诱导人翼状胬肉成纤维细胞凋亡及对caspase-3表达的研究
Experimental Research of Apoptosis in Pterygium Fibroblasts Induced by 5F and Effect on the Expression of Caspase-3
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其中,环氧二萜内酯化合物&雷公藤甲素(triptolide,TP)被认为是最主要的抗炎和免疫抑制成分。
A epoxy diterpenoid lactones-triptolide ( TP ) is considered to be the most important anti-inflammatory and immunosuppressive component of the Tripterygium .
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目的研究穿心莲二萜类化合物(DAP)对B16细胞致敏小鼠脾脏CTL杀伤活性的影响。
Aim To study the effect of diterpenoids of Andrographis paniculata ( DAP ) on CTL activity in mice sensibilized by B16 cells .
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紫杉醇(taxol)作为具有新颖机制的抗肿瘤药的应用,促进了红豆杉属(Taxus)植物中紫杉烷类二萜及二萜生物碱成分的化学研究。
The finding of taxol as a new antitumor agent with novel mechanism has promoted chemical studies of the taxane diterpenoids and diterpene alkaloids of genus Taxus .
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从华北西部和南部五个煤矿取得的石炭、二叠系腐殖煤的饱和烃馏分中,经GC和GC/MS分析,检测出了较丰富的二萜类生物标志物。
Diterpenoid biomarkers were evidently detected by GC and GC / MS analysis in the saturated hydrocarbon fractions of Carboniferous and Permian humic coals in five coal mines in the western and Southern North China .
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紫杉醇(paclitaxel,商品名Taxol)是首先从太平洋红豆杉树皮中分离得到的有效抗肿瘤药物,属于紫杉烷二萜类化合物。
Taxol , first isolated from the bark of Pacific Yew ( Taxus brevifolia ), is an important and powerful anti-tumor drug , which belongs to taxane diterpene compounds .
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本文综述了2002年以前45个天然产C19二萜生物碱的单晶X射线衍射分析结果及其结构特点。
Advances in the crystal X-ray diffraction analysis of naturally-occurring C_ ( 19 ) - diterpenoid alkaloids were reviewed and their stereochemistry were also discussed .
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提示hetisine型C20二萜生物碱具有抗血小板聚集活性。
It was suggested that hetisine type diterpene alkaloids had antiplatelet aggregation activity .
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比较6月与10月份同为GAP基地采集的雷公藤样品,结果10月份采集样品二萜类、生物碱类及三萜类含量均高于6月份采集的样品,再次验证了雷公藤合理的采收季节为秋季。
In comparison of the samples collected in different seasons from the GAP base , the contents of diterpene , alkaloids and triterpenes were all higher in October than in June , proving that the reasonable harvest season of T. wilfordii is in autumn .
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半枝莲,为唇形科植物半枝莲(ScutellariabarbataD.Don)的干燥全草,其主要活性成分为黄酮类化合物和二萜类化合物。
Scutellaria barbata D.DON , a herb belonging to the Lamiaceae family , has main active components such as flavones and diterpenoids .
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萜类合酶催化单萜、倍半萜和二萜生物合成,即分别催化GPP、FPP和GGPP形成单萜、倍半萜和二萜。
Terpene synthases catalyse the biosynthesis of monoterpenes , sesquiterpenes and diterpenes with the GPP , FPP and GGPP as substrates , respectively .
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目的:研究旱生香茶菜总二萜(IXD)对人肝癌细胞株(CA)增殖、荷CA裸鼠皮下移植瘤生长的影响。
OBJECTIVE : To study the effects of Diterpenoids of Isodon Xerophilus ( IXD ) on cell proliferation of human hepatocellular carcinoma cell line ( CA ) and growth of human hepatocellular carcinoma subcutaneous transplantation tumor in nude mice .
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一些丹参醌类二萜醌在电子轰击下的裂解反应&关于一种不常见的(M-O)碎片离子的观察
Studies on the fragmentation of diterpene quinones related to tanshinone under electron impact & the observation of an unusual ( m-o ) fragment ion
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构效关系是以紫杉醇为先导化合物,通过C13侧链和二萜环侧链的改造以及生物学评价而建立的。
Being a leading compound , the structure activity relationship ( SAR ) of the taxol has been established through the structural modifications of C13 side chain and diterpenoid core of taxol , combined with biological evaluation of taxol analogs .
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甘遂中巨大戟萜醇型二萜酯类化学成分的研究
Studies on ingenol-type diterpene esters in root tuber of Euphorbia kansui
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毛萼香茶菜的新二萜化合物,毛萼晶甲-戊的结构
The structures of new diterpenoids , maoecrystal A-E from Rabdosia eriocalyx