排序方式: 共有16条查询结果,搜索用时 156 毫秒
1.
R. I. Jalmakhanbetova V. A. Raldugin I. Yu. Bagryanskaya Yu. V. Gatilov M. M. Shakirov G. A. Atazhanova S. M. Adekenov 《Chemistry of Natural Compounds》2007,43(5):552-554
Adducts of dihalocarbenes generated from chloroform and bromoform were prepared by reaction with estafiatin guaianolide. Their
structures were established by XSA.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 453–455, September–October, 2007. 相似文献
2.
R. I. Dzhalmakhanbetova S. B. Akhmetova V. A. Raldugin Yu. V. Gatilov G. A. Atazhanova S. M. Adekenov 《Chemistry of Natural Compounds》2006,42(3):307-309
A tetrabromo derivative of arglabin was synthesized stereoselectively. The molecular structure of the new compound was established
using PMR and 13C NMR spectra and an x-ray structure analysis. Its antifungal activity was demonstrated.
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Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 253–254, May–June, 2006. 相似文献
3.
Inaprelindnary.ommunication',wehavereportedonanewguaianolideartseleninisolatedfromArtemisiaselengensisTurcz(Compositae).Inthepresentpaperwedescribethestructureelucidationofartselenoide1obtainedasanewdimericguaianolidefromthesamepart.1wasobtainedascolorlesspowders,mpl85-l86D,[a]." l25(cO.l,MeOH).TheIRspectrumexhibitedabsorptionbandsduetohydroxyl(3435cm-'),Ylactone(l764cm-')anddoublebond(l648,l635,l456cm-')groups.Themolecularformu1aCstheooof1wasdeducedfromthedataofESIMS(Inlz5l9[M Na] ,53… 相似文献
4.
MinYANG ZhongJianJIA 《中国化学快报》2004,15(4):417-418
A new guaianolide was isolated from Saussurea macrota.Its structure was elucidated by NMR spectroscopic and X-ray diffraction methods. 相似文献
5.
A New Sesquiterpene Lactone from Scorzonera austriaca 总被引:2,自引:0,他引:2
JuanLI QuanXiangwu YanPingSHI YingZHU 《中国化学快报》2004,15(11):1309-1310
A new guaianolide was isolated from the roots of Scorzonera austriaca. The structurewas elucidated on the basis of spectral methods including 2D NMR. 相似文献
6.
R. I. Jalmakhanbetova G. A. Atazhanova V. A. Raldugin I. Yu. Bagryanskaya Yu. V. Gatilov M. M. Shakirov S. M. Adekenov 《Chemistry of Natural Compounds》2007,43(5):548-551
A pentachloro derivative, the structure of which was proved by x-ray structure analysis, in addition to a new dichlorocarbene
derivative were obtained for the first time by dichlorocyclopropanation of arglabin guaianolide. The stereochemistry of the
principal reaction product was established.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 450–452, September–October, 2007. 相似文献
7.
A new guaianolide,notoserolide E,along with nine known compounds was isolated from the Chinese endemic plant of Notoseris henry (Dunn) Shih and its structure was elucidated by means of spectroscopic evidence. 相似文献
8.
Jalmahanbetova R. I. Rakhimova B. B. Raldugin V. A. Bagryanskaya I. Yu. Gatilov Yu. V. Shakirov M. M. Kulyjasov A. T. Adekenov S. M. Tolstikov G. A. 《Russian Chemical Bulletin》2003,52(3):748-751
The stereoselective synthesis of two phosphorus-containing derivatives of the known guaianolide arglabin was carried out for the first time. The molecular structures of these products were established based on the spectroscopic data and the results of X-ray diffraction analysis of one of these compounds. 相似文献
9.
Dr. Rebecca H. Pouwer Dr. Jean‐Alexandre Richard Dr. Chih‐Chung Tseng Prof. Dr. David Y.‐K. Chen 《化学:亚洲杂志》2012,7(1):22-35
In the long lasting battle against cancer, Nature sometimes gives a helping hand to researchers to find new drugs for the treatment of diseases and improvement of patients′ well‐being. Englerin A has emerged as a promising anticancer candidate as well as being an exciting synthetic challenge for organic chemists. This focus review summarizes the total syntheses reported to date and the synthetic approaches toward analogues of this fascinating natural product. 相似文献