二萜

èr tiē
  • diterpene
二萜二萜
二萜[èr tiē]
  1. 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

  2. 一个新的紫杉烷二萜化合物的NMR研究

    NMR Study of a New Taxane Diterpene

  3. 二萜生物碱的~(13)C核磁共振谱

    ~ ( 13 ) C Nuclear Magnetic Resonance of Diterpenoid Alkaloids

  4. 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)

  5. 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

  6. 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

  7. 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

  8. 香茶菜属二萜的2DNMR研究(1)

    2D NMR study on the rabdosia diterpenoid ( 1 )

  9. 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

  10. 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 .

  11. 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 .

  12. 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 .

  13. 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 ;

  14. 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

  15. 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

  16. 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 .

  17. 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 .

  18. 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 .

  19. 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 .

  20. 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 .

  21. 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 .

  22. 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 .

  23. 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 .

  24. 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 .

  25. 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 .

  26. 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 .

  27. 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

  28. 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 .

  29. 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

  30. 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