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V. U. Khuzhaev I. Zh. Zhalolov M. G. Levkovich S. F. Aripova A. S. Shashkov 《Russian Chemical Bulletin》2004,53(8):1765-1767
The structure of a new dimeric indole alkaloid, arundarine, isolated from the roots of the plant Arundo donax L. (Poaceae) was determined. On the basis of spectroscopic data, arundarine was identified as 5-[3-(2-dimethylaminoethyl)indol-1-yl]-6-hydroxy-N
2-methyl-1,2,3,4-tetrahydro--carboline.Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1697–1699, August, 2004.For Part 14, see Ref. 1. 相似文献
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B. T. Salimov 《Chemistry of Natural Compounds》2004,40(6):579-581
The structure of the C20-diterpenoid alkaloid cordizine, which was isolated previously from Delphinium corymbosum, was discussed in detail. A scheme for the possible biosynthetic pathway of the lycoctonine precursor of C19-norditerpenoid bases was proposed based on the simultaneous occurrence in the plant of denudatine and lycoctonine.Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 476–478, November–December, 2004.This revised version was published online in April 2005 with a corrected cover date. 相似文献
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The new alkaloid O-acetylnitraraine was isolated from the aerial part of Nitraria schoberi. Its structure was established using spectral data and chemical transformations.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 472–473, September–October, 2005. 相似文献
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E. D. Khairitdinova E. M. Tsyrlina L. V. Spirikhin N. I. Fedorov M. S. Yunusov 《Chemistry of Natural Compounds》2005,41(5):572-574
A mixture of two new norditerpene alkaloids consisting of two regioisomers was isolated from the total alkaloids of Delphinium cuneatum roots. Their structures were proposed as 16-demethoxydelavaine (2a and b) on the basis of PMR, 13C NMR, IR, and mass spectra.
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Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 467–468, September–October, 2005. 相似文献
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Anita Kovács I. Csóka Magdolna Kónya E. Csányi A. Fehér I. Erős 《Journal of Thermal Analysis and Calorimetry》2005,82(2):491-497
Summary The properties of the inner and the external aqueous phases, were studied in w/o/w multiple emulsions with light microscopic image analysis and differential scanning calorimetry (DSC). The importance of multiple
emulsions lies in the presence of these aqueous phases, making them available for sustained, controlled drug delivery systems.
Differentiation of these two aqueous phases, studying the effect of manufacturing technology on droplet structure, quantitative
determination of phase volumes and any changes occurring during storage are essential when planning w/o/w emulsions. The present study uses microscopic observations combined with DSC measurements in order to identify the formed
structure, at developmental stage in case of different components, preparation methods, and stirring rates. These tools are
beneficial during manufacturing as in process controls, or to ensure product quality. 相似文献
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