Journal ArticleDOI
The stereospecific synthesis of inotodiol 3β, 22R-dihydroxylanosta-8,24-diene
TLDR
Inotodiol 1a has been stereospecifically synthesised from lanosterol in six steps and Horeau's method utilised to demonstrate the R-configuration at C-22.About:
This article is published in Tetrahedron.The article was published on 1974-01-01. It has received 17 citations till now. The article focuses on the topics: Inotodiol & Lanosterol.read more
Citations
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Book ChapterDOI
Experimental approaches to antifungal chemotherapy.
TL;DR: This chapter discusses the experimental approaches to antifungal chemotherapy, and the possibility exists of applying a topical treatment to the affected area, or alternatively treating the infection systemically, getting the parasite from “behind.
Journal ArticleDOI
Dormantinol, a possible precursor in solanidine biosynthesis, from budding Veratrum grandiflorum
TL;DR: A new sapogenin, dormantinol, was isolated from budding Veratrum, and identified as (25S)-cholest-5-ene-3β,22α,26-triol by spectral analysis and its synthesis from dormantinone.
Journal ArticleDOI
General and highly α-regioselective zinc-mediated prenylation of aldehydes and ketones.
TL;DR: The method provides a convenient route for the direct α-prenylation of carbonyl compounds in a highly α-regioselective manner using a cheap and convenient mediator.
Journal ArticleDOI
Guaianolides, heliangolides, diterpenes and cycloartenol derivatives from Balsamorhiza sagittata
Ferdinand Bohlmann,Laxmi N. Misra,Jasmin Jakupovic,Robert M. King,Robert M. King,Harold Robinson,Harold Robinson +6 more
TL;DR: In this paper, the aerial parts of Balsamorhiza sagittata were investigated for the extraction of sesquiterpene lactones, five guaianolides, three heliangolides and three germacranolides.
Journal Article
Chemical Constituents of Inonotus obliquus I.：A new triterpene, 3β-hydroxy-8,24-dien-lanosta-21,23-lactone from sclerotium
TL;DR: A new lanostane type triterpene with a lactone partial structure in the side chain was isolated from the sclerotium of the wood rotting fungus Inonotus ob/iquus together with three known compounds; lanosterol, inotodiol and trametenolic acid.
References
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Journal ArticleDOI
Improved procedure for oxidations with the chromium trioxide-pyridine complex
Journal ArticleDOI
Zur Chemie des Ecdysons, VII: Die Kristall‐ und Molekülstrukturanalyse des Insektenverpuppungshormons Ecdyson mit der automatisierten Faltmolekülmethode
TL;DR: In this article, the vollstandige Struktur und Konfiguration des Insektenverpuppungshormons Ecdyson wird durch Rontgenstrukturanalyse der naturlichen, schweratomfreien Verbindung als 2β.3β.14α.22βF.25-Pentahydroxy-Δ7-5β-cholestenon-(6) ermittelt.
Journal ArticleDOI
Determination des configurations par “dedoublement partiel”—III : Alcools steroides
A. Horeau,Henri B. Kagan +1 more
TL;DR: The methode de dedoublement partiel as discussed by the authors is a partiel partiel (1) a ete appliquee a des alcools steroides tres varies and elle permet de trouver avec la plus grande surete la configuration α ou β de l'hydroxyle for toutes les positions examinees, exception faite des positions 2, 3 and 16 qui, en l'absence de substituants vicinaux, ne donnent lieu qu'a de faibles dedoublements.
Journal ArticleDOI
Steric Interference in Allylic and Pseudo-Allylic Systems. I. Two Stereochemical Theorems
Journal ArticleDOI
Tumor inhibitors. XXXIX. Active principles of Acnistus arborescens. Isolation and structural and spectral studies of withaferin A and withacnistin.
S. M. Kupchan,W. K. Anderson,P. Bollinger,Raymond W. Doskotch,Roger M. Smith,Renauld Ja,H. K. Schnoes,Alma L. Burlingame,D. H. Smith +8 more
Related Papers (5)
Stereospecific synthesis of (22R)-22-hydroxycholesterol and (22R)-cholesta-5,24-diene-3beta,22-diol.
J. Philip Poyser,Guy Ourisson +1 more
Stereospecific synthesis of (±)-sesbanine and its C-10 epimer
Andrew S. Kende,Thomas P. Demuth +1 more