1995
DOI: 10.1002/hlca.19950780318
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Synthesis of the Dolabellane Diterpene Hydrocarbon (±)‐δ‐araneosene

Abstract: The racemic form of the bicyclic diterpene hydrocarbon 6 -araneosene (4), endowed with the dolahellane skeleton, was prepared from geraniol in two different ways. The more efficient route involved 13 steps and proceeded with an overall yield of 3.6% (average: 77% per step). With this reference sample at hand, the hitherto elusive metabolite (-)-4, a likely biogenetic precursor of cycloaraneosene ((-)-3) and sordaricin ((-)-1), could finally be isolated in 2 99.5% purity from the neutral fractions of the mold S… Show more

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Cited by 52 publications
(26 citation statements)
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References 81 publications
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“…6) It showed ½ D þ133 (c 0.090, n-hexane), and 1 H-and 13 C-NMR spectra identical to those of (À)--araneosene (½ D À127 (c 3.04, n-hexane); 6) 6) Thus, 3 was determined to be (þ)--araneosene (Fig. 1).…”
mentioning
confidence: 92%
“…6) It showed ½ D þ133 (c 0.090, n-hexane), and 1 H-and 13 C-NMR spectra identical to those of (À)--araneosene (½ D À127 (c 3.04, n-hexane); 6) 6) Thus, 3 was determined to be (þ)--araneosene (Fig. 1).…”
mentioning
confidence: 92%
“…Shen et al (2012) isolated thirteen diterpenoids named radianspenes A-M (25)(26)(27)(28)(29)(30)(31)(32)(33)(34)(35)(36). 27 Their structures were compared to the guanacastepenes.…”
Section: Structural Diversity Of Neodolastanesmentioning
confidence: 99%
“…Zuschriften (1S)-d-Araneosen aus Sordaria araneosa (Lit. :[a] D = À127.6, c 3.04, Hexan), [19] so dass das Nebenprodukt der CgDS als (+ +)-(1R)-d-Araneosen (2)i dentifiziert wurde.…”
Section: Angewandte Chemieunclassified
“…Dessen optische Aktivität, [a] 20 D =+161 (c 0.02, Hexan) verwies auf das Enantiomer des bekannten Naturstoffes (À)- [19] so dass das Nebenprodukt der CgDS als (+ +)-(1R)-d-Araneosen (2)i dentifiziert wurde. Dessen optische Aktivität, [a] 20 D =+161 (c 0.02, Hexan) verwies auf das Enantiomer des bekannten Naturstoffes (À)- [19] so dass das Nebenprodukt der CgDS als (+ +)-(1R)-d-Araneosen (2)i dentifiziert wurde.…”
unclassified