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    Tarapacol 15-Acetate, a New Diterpenoid from Grindelia tarapacana Phil.

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    TimmermannB_ACB_34(3)947.pdf (330.6Kb)
    Issue Date
    1996
    Author
    Zhou, Lin
    Timmermann, Barbara N.
    Grittini, Carina
    Bruck, Michael A.
    Enemark, John H.
    Publisher
    International Union of Crystallography
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    In the title compound, 15-acetoxy-14(S)-hydroxy-13-epi-manoyl oxide {IUPAC systematic name: 2-(dodecahydro-3,4a,7,7,10a-pentamethyl-1H-naphtho[2,1-b]pyran-3-yl)-2-hydroxyethyl acetate}, C22H38N4, rings A and B have chair conformations. Ring C adopts a boat conformation with the 16-methyl group in an axial position and the bulky glycol monoacetate group in an equatorial position. Ring systems A/B and B/C (conventional IUPAC labdane diterpenoid nomenclature) are trans fused about the C(5)-C(10) and C(8)-C(9) bonds, respectively. The present study establishes the relative stereochemistry at the C(14) position.
    URI
    http://hdl.handle.net/1808/17565
    DOI
    https://doi.org/10.1107/S0108270195013473
    Collections
    • Medicinal Chemistry Scholarly Works [225]
    Citation
    Zhou, L., Timmermann, B.N., Grittini, C., Bruck, M.A., and Enemark, J.H. "Tarapacol 15-Acetate, a New Diterpenoid from Grindelia tarapacana Phil." Acta Cryst. (1996). C52, 1042-1044 http://dx.doi.org/10.1107/S0108270195013473

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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