1967
DOI: 10.1002/jlac.19677030119
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Seco‐ und Aza‐Derivate des Sitosterins

Abstract: Als Ausgangsstoffe zur Darstellung von 6-Aza-sitostan-Derivaten werden 3P-Acetoxy-5-0x0-5.6-seco-sitostan-6-carbonsaure (l), 3~-Acetoxy-5-oxo-5.7-seco-6-nor-sitostan-7-carbonsaure (8), B-Nor-sitosterin (11) und weitere Urnwandlungsprodukte des Sitosterins dargestellt. Das Verhalten der Ketosaure 1 gegen Alkalien wird untersucht. Das Azid von 1 ergibt, nach Curtius in essigsaurem Medium abgebaut, unter RingschluB und Abspaltung von Essigsaure A3.5-6-Aza-sitostadien (12). Das amorphe Isocyanat von 1 laBt sich du… Show more

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Cited by 3 publications
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“…A literature search exposed that 1 had been previously obtained as a synthetic product by Lettré and Beheim in 1967, derived from β‐sitosterol, but it was poorly characterized (i.e., no NMR spectroscopy, MS, or IR spectroscopy data). The NOESY and 1D NOE spectra (see the Supporting Information) were therefore recorded to confirm the relative configuration of 1 .…”
Section: Resultsmentioning
confidence: 99%
“…A literature search exposed that 1 had been previously obtained as a synthetic product by Lettré and Beheim in 1967, derived from β‐sitosterol, but it was poorly characterized (i.e., no NMR spectroscopy, MS, or IR spectroscopy data). The NOESY and 1D NOE spectra (see the Supporting Information) were therefore recorded to confirm the relative configuration of 1 .…”
Section: Resultsmentioning
confidence: 99%