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1.
Summary 1. Isoimperatorin and oxypeucedanin have been found in the roots ofPrangos tschimganica B. Fedtsch.2. A new coumarin which we have called prantschimgin, has been isolated and its structure has been established as the ester of 5-(2-hydroxyisopropyl)-4,5-dihydrofuro(2,3: 7, 6) coumarin and 2, 2-dimethylacrylic (senecioic) acid.Khimiya Prirodnykh Soedinenii, Vol. 2, No. 4, pp. 235–239, 1966 相似文献
2.
G. A. Kuznetsova A. Z. Abyshev M. E. Perel'son Yu. N. Sheinker G. Yu. Pek 《Chemistry of Natural Compounds》1968,2(5):252-255
Summary A new coumarin, pranferol C16H16O5, has been isolated from the roots ofPrangos ferulacea (L.) Lindl.The structure 5-(2-hydroxy-3-methylbutoxy)furo-2,3:7,6-coumarin has been proposed for pranferol.Khimiya Prirodnykh Soedinenii, Vol. 9, No. 5, pp. 310–315, 1966 相似文献
3.
A. Z. Abyshev A. M. Kutnevich N. P. Kostyuchenko O. S. Anisimova A. I. Ermakov Yu. N. Sheinker 《Chemistry of Natural Compounds》1973,6(3):301-303
Conclusions A new coumarin C15H18O5 with mp 141.5–142.5° C (from benzene) has been isolated from the roots and fruit ofPrangos uloptera D. C., and it has been called ulopterol. On the basis of UV, IR, NMR, and mass spectra it has been found to have the structure of 6-(2,3-dihydroxy-3-methylbutyl)-7-methoxy-coumarin and is a geometrical isomer of meranzin hydrate.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 3, pp. 300–304, 1970 相似文献
4.
P. I. Zakharov P. B. Terent'ev G. K. Nikonov L. G. Avramenko A. A. Azizov A. I. Ban'kovskii 《Chemistry of Natural Compounds》1976,10(5):586-588
Summary From a methanolic extract of the roots ofPrangos biebersteinii Karjag., in addition to substances found previously, two other components — (I) and (II) — of the coumarin series have been isolated.The results of a study of their IR, NMR, and mass spectra, and also their chemical properties have enabled (I) to be identified as the known coumarin umbelliferone and the structure of 5-(1,2-dihydroxy-isopropyl)-4,5-dihydrofuro-2,3:7,6-coumarin to be proposed for (II), which has been named prandiol.Leningrad Sanitary-Hygenic Medical Institute. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 574–577, September–October, 1974. 相似文献
5.
A. Z. Abyshev P. P. Denisenko N. P. Kostyuchenko O. S. Anisimova E. I. Ermakov Yu. N. Sheinker 《Chemistry of Natural Compounds》1973,6(6):689-692
Summary From the roots ofPrangos ferulacea (L) Lindl. a new coumarin has been isolated, C18H22O5, mp 167.5–169°C (from benzene) []16
D ± 0° (c 3.88; chloroform), and it has been called pranferin.By a study of its UV, IR, NMR, and mass spectra and chemical properties, its structure has been established as 8-(2-acetyl-2-tert-butoxyethyl)-7-methoxycoumarin.Komarov Botanical Institute, Academy of Sciences of the USSR. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 675–680, November–December, 1970. 相似文献
6.
N. E. Ermatov A. I. Ban'kovskii M. E. Perel'son G. P. Syrova Yu. N. Sheinker 《Chemistry of Natural Compounds》1971,4(3):125-128
Conclusions From the roots ofLibanotis buchtormensis (Fisch.) D.C. have been isolated the furocoumarins bergapten, isoimperatorin, a pyranocoumarin, xanthogallol, and a new coumarin buchtormin C19H20O5, for which the structure (+)-3-(,-dimethylacryloxy)-2,2-dimethyl-3, 4-dihydropyrano-5, 6:8, 7-coumarin has been proposed and confirmed by synthesis.Khimiya Prirodnykh Soedinenii, Vol. 4, No. 3, pp. 145–149, 1968 相似文献
7.
From the epigeal part ofGenista compacta has been isolated the new isoflavone bioside compactin — C27H30O16, mol. wt 610, mp 206–208°C, []
D
20
+ 35.8° — for which on the baseos chemical transformations and spectral characteristics the structure of 7-[O--D-glucopyranosyl-(1 2)--D-glucopyransyloxy]-3,4,5-trihydroxyisoflavone, or orobol 7-O--sophoroside, has been established.Pyatigorsk Pharmaceutical Institute. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 507–510, July–August, 1985. 相似文献
8.
A universal key component is proposed for the preparation of oligonucleotides with 3- and 5-terminal phosphate groups — 2,3-dibenzoyluridin-5-yl (4-chlorophenylphosphate) (pU(Bz)2), which is a potential source of the phosphate group. The condensation ofpU(Bz)2 with the 5-OH or the 3-OH group of a protected oligonucleotide leads to the formation of oligodeoxyribonucleotides with 5- or 3-terminal uridine, respectively. The oxidation of the 2,3-cis-glycol group of the terminal uridine unit followed by -elimination forms oligodeoxyribonucleotides with terminal phosphate groups.M. V. Lomonosov Moscow State University. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 731–734, September–October, 1987. 相似文献
9.
U. A. Baltaev 《Chemistry of Natural Compounds》1992,27(6):712-713
A new ecdysteroid (rhapisterone B) has been isolated from the seeds ofRhaponticum cathamoides (Willd.) Iljin. (familyCompositae). It has been shown that it is 2, 3, 11, 14, 20R, 24-hexahydroxy-5-cholest-7-en-6-one.Institute of the Chemistry of Plant Substances, Uzbek Academy of Sciences, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 806–808, November–December, 1991. 相似文献
10.
Conclusions From the roots ofXanthogalum purpurascens collected in the region of the Arsiansk range, a new furocoumarin has been isolated with the formula C21H22O7, mp 104–105°C, []
D
20
+ 109° (c 1.09; ethanol), and it has been named tomasin. On the basis of its UV, IR, and NMR spectra it has been established that it is 8-(2-angeloyloxy-3-hydroxy-3-methylbutoxy)furo-3, 2:6, 7-coumarin.Khimiya Prirodnykh Soedinenii, Vol. 5, No. 5, pp. 359–361, 1969 相似文献