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Closed Access item C12 stereochemistry of α- and β-levantenolide carbon-13 NMR spectra of labdanolic diterpenes

Authors:González, Antonio G.
Freire, Raimundo
Francisco, Cosme G.
Salazar, José A.
Hernández, Rosendo
Suárez, Ernesto
Issue Date:May-1976
Publisher:Elsevier
Citation:Tetrahedron Letters 17(22): 1897-1898 (1976)
Abstract:From Turkish tobacco Giles and Schumacher (1) isolated the two diterpene lactones β- and α-levantenolide, for which they proposed structures 1 and 2 respectively on the basis of chemical degradative work and spectral data.
As shown below, the stereochemistry of these compounds at C12 must be revised in the light of spectroscopic studies.
Description:2 pages, 1 table, 1 scheme.
Publisher version (URL):http://dx.doi.org/10.1016/S0040-4039(00)92957-5
URI:http://hdl.handle.net/10261/15186
ISSN:0040-4039
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Appears in Collections:(IPNA) Artículos

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