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Title of Journal: Chem Nat Compd

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Abbravation: Chemistry of Natural Compounds

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Kluwer Academic Publishers-Plenum Publishers

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DOI

10.1016/j.acalib.2017.01.012

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1573-8388

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Cyclization of cembrane diterpenoids VI Products

Authors: A V Shaptov V A Raldugin Yu V Gatilov I Yu Bagryanskaya M M Shakirov
Publish Date: 1994/03/01
Volume: 30, Issue: 2, Pages: 229-237
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Abstract

The structures and the stereochemistries of all the main products of the carbocyclization of 5βacetoxyisocembrol on its interaction with aqueous formic acid in chloroform have been established This reaction takes place more selectively than the cyclization of cembrene under the same conditions and is distinguished by the complete predominance in its last stage of the 15hydride shift from C15 to C4 over the splitting out of a proton from the C4methyl group


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  1. Indole alkaloids from the roots of Isatis ingigotica and their antiherpes simplex virus type 2 (HSV-2) activity in vitro
  2. A study of the properties and 13 C NMR spectra of pinifolic acid and its derivatives
  3. Quinoid pigments of echinodermata V. Pigments of the sea urchin Strongy locentrotus dröebachiensis
  4. Composition of the essential oil of Larix sibirica
  5. A New Cyclic Peptide from Bulbs of Fritillaria hupehensis
  6. Automation of the optimization of the separation of protamines by high-performance liquid chromatography
  7. Chemical synthesis and enzymatic assembly of fragments of the DNA coding immunodominant epitopes of human immunodeficiency virus
  8. Extraction of the total alkaloids from the epigeal part of Aconitum orientale
  9. Use of the method of metastable defocusing for the analysis of the processes involved in the fragmentation of lycoctonine bases
  10. Chemical Constituents of Cinnamomum rupestre and Cinnamomum nanophyllum
  11. The use of the intramolecular nuclear Overhauser effect to establish the positions of substituents in the aromatic nuclei of the alkaloids majoridine and O-acetyl-N-methyllochnerine
  12. Chemical composition of the essential oils of mongolian wormwoods Artemisia xerophytica and A. xantaphora
  13. Effect of polyhydroxysteroids from starfish and brittle stars on the activity of β-1,3-glucanases
  14. Evaluation of vinasses from sugarcane molasses distillation as a new source of sugarcane wax
  15. Phenolic Compounds from Roots of Lupinus polyphyllus
  16. Preparation of (2′-5′)-oligonucleotides based on 6- N -benzylaminopurineriboside using the Spicaria violacea fungal enzyme complex
  17. Rapid isocratic HPLC analysis of caffeic acid derivatives from Echinacea purpurea cultivated in Iran
  18. Isolation and Identification of Radical Scavenging Components of Seeds of Desmodium styracifolium
  19. Synthesis of actiphenol and its normethyl analogues and 6-hydroxy derivatives
  20. General characteristics of immunomodulator bioglycans from invertebrates of the sea of Japan
  21. Modifying Effect of Betulinol on Carbon Sorbents Produced from Betula birch Wood
  22. A new arylsulfatase from the marine mollusk Turbo chrysostomus
  23. Isolation and identification of furanocoumarins and a phenylpropanoid from the acetone extract and identification of volatile constituents from the essential oil of Peucedanum pastinacifolium
  24. A New Diterpene Isolated from the Resin of Hymenaea Courbaril
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  26. Biological and phytochemical investigations on Ajania fruticulosa
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  30. Protease A from cotton seeds. Isolation and purification of the enzyme
  31. Synthetic and modified isoflavonoids. II. Synthesis of new 2,6-dialkyl-substituted analogues of pseudobaptigenin
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  33. Diacetylisostachyflaside and acetylisostachyflaside from Stachys atherocalyx
  34. Berberis alkaloids XXXII. Berberal — A new alkaloid from Berberis heterobotrys
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  36. Chemical investigation of Hippophaë rhamnoides . I. The main components of the unsaponifiable part of an extract of the fruit pulp
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  39. Some Biological Compounds, Antioxidant and Antimicrobial Activities of Endemic Hypericum uniglandulosum
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  47. Fatty acid composition of Prosopis cineraria seeds
  48. Proteins responsible for seed pubescence of cotton genetic lines
  49. Products of the ozonolysis of epitorulosol
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  51. Synthesis and biological activity of aminoacyl phenothiazine derivatives based on the alkaloids cytisine, anabasine, and d -pseudoephedrine
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