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1.
N. K. Kochetkov A. Ya. Khorlin V. E. Vas'kovskii I. P. Gudkova 《Russian Chemical Bulletin》1965,14(7):1177-1184
Summary The complete structure of araloside C — a triterpenoid saponin from the roots ofAralia manshurica (Rupr. et Mey) — was established.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimisheskaya, No. 7, pp. 1214–1222, July, 1965 相似文献
2.
V. M. Zhulin N. N. Malysheva Z. G. Makarova E. M. Klimov N. K. Kochetkov 《Russian Chemical Bulletin》1990,39(9):1940-1942
The polycondensation of 1,2-0-exo-cyanethylidene-4,6-di-0-acetyl-3-0-trityl--D-glucopyranose (I) was accomplished in the presence of triphenylmethylium perchlorate in CH2Cl2 under the pressure of 14 kbar. The reaction was performed in the frozen solution after the phasic transition of the system, and led to the product of polycondensation which, after the removal of the protecting groups, gave the exactly regio- and stereo-regular -(1–3)-D-glucan.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2129–2132, September, 1990. 相似文献
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Conclusions The syntheses of D-threo-L-galacto-octose and D-threo-L-ido-octonic acid from D-galactose are described; these confirm that the new method for the preparation of higher sugars via 2,3-dehydro-2,3-dideoxy aldonic acids is general.Translated from Izvestiya Akadeemii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1405–1412, August, 1965 Original article submitted June 20, 1963 相似文献
5.
The pentasaccharide α - Tyv - (1→3) - β - d - Man - (1→4) - α - l - Rha - (1→3) - d - Gal - (4←1) -α - d - Glc 1, the repeating unit of the O-specific polysaccharide chain of the lipopolysaccharide from S. Strasbourg, was obtained by glycosylation of benzyl - 2,6 - di - O - benzyl - 4 - O - (2,3,4 - tri - O - benzyl - 6 - O - benzoyl - α - d - glucopyranosyl) - β - d - galactopyranoside with 1,2 - methylorthoacetyl - 3 - O - acetyl - 4- O - [3 - O - (2,4 - di - O - acetyl - 3, 6 - dideoxy,- α - d - arabino - hexopyranosyl) - 2,4,6 - tri - O - acetyl - β - d - mannopyranosyl] - β - l - rhamnopyranose 3 followed by removal of protecting groups. The structure of the synthetic pentasaccharide was proved by methylation analysis and 13C NMR. 相似文献
6.
N. K. Kochetkov B. A. Dmitriev A. V. Nikolaev N. É. Bairamova 《Russian Chemical Bulletin》1977,26(7):1480-1483
Conclusions Trisaccharide-D-glucopyranosyl-(14)--L-rhamnopyranosyl-(1 3)-D-galactose was synthesized by using, 2-O-isopropylidene-4,6-O-ethylidene--D-galactopyranose for producing 1 3-rhamnosylgalactose, linkage.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1609–1613, July, 1977. 相似文献
7.
V. N. Shibaev Yu. Yu. Kosov I. V. Komlev E. I. Budovskii N. K. Kochetkov 《Russian Chemical Bulletin》1969,18(11):2350-2356
Conclusions We synthesized two analogs of the natural coenzyme adenosine diphosphate glucose: N6-methyl-ADPG and N6, N6-dimethyl-ADPG.For communication 11, see [1].The following abbreviations are used in this article: ADPG) adenosine-5'-diphosphate-a-D-glucopyranose; N6-methyl-ADPG) N6-methylamino-9--D-ribofuranosylpurine-5-diphosphate--D-glucopyranose; N6, N6-dimethyl-ADPG) N6, Ng-dimethylamino-9--D-ribofuranosylpurine-5-diphosphate--D-glucopyranose.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2514–2521, November, 1969. 相似文献
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Summary A simple, general method of reducing esters and lactones of aldonic acids to sugars by the action of sodium amalgam, according to which the process is conducted in the presence of a strong cation exchange resin to maintain optimum pH, has been proposed.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya No. 11, pp. 2095–2096, November, 1964 相似文献