Results 1 to 10 of about 214 (123)
Synthesis of 24-heteroatom-substituted cholestanols
Short syntheses of 24-thia-5 alpha,20 xi-cholestan-3 beta-ol, 24-methyl-24-aza-5 alpha,20 xi-cholestan-3 beta-ol, and 24-nor-5 alpha,20 xi-cholan-3 beta-ol from 3 beta-hydroxy-5 alpha-pregnan-20-one are described. The products and synthetic intermediates
M D Rahman, H M Seidel, R A Pascal, Jr
doaj +3 more sources
Synthesis of conjugated cholesterol and cholestanols.
The glucuronides, sulfates, glucosides and N-acetylglucosaminides of cholesterol and epimeric 5α-cholestan-3-ols have been synthesized. The formation of a β-glucoside linkage was readily achieved by means of the Koenigs-Knorr reaction with the corresponding α-acetohalosugar, employing cadmium carbonate as a catalyst.
GOTO, JUNICHI +2 more
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Presenile Cataract: Consider Cholestanol [PDF]
Contains fulltext : 50065.pdf (Publisher’s version ) (Closed access)
Teszas, A. +6 more
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Relation of sterol structure to utilization in pleuropneumonia-like organisms
Six sterols, Δ5-cholesten-3Β-ol (cholesterol), Δ5-cholesten-3α-ol, cholestan-3Β-ol, cholestan-3α-ol, coprostan-3Β-ol, and coprostan-3α-ol, selected to represent variations in the configuration of the A and B rings and of the 3-hydroxyl group, were tested
Paul F. Smith
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Crystal structure of cholestanyl caprylate and binary phase behavior with cholesteryl caprylate.
The crystal structure of cholestanyl n-octanoate (caprylate) (C35H62O2) is monoclinic with space group A2 and cell dimensions a = 10.103(7), b = 7.646(7), c = 87.63(7) A, beta = 90.51(6) degrees; Z = 8 [two molecules (A, B) in asymmetric unit], V = 6769 ...
GW Han, BM Craven
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Aerosols containing aliphatic hydrocarbons play a substantial role in the urban atmosphere. Cyclic alkanes constitute a large fraction of aliphatic hydrocarbon emissions originating from incomplete combustion of diesel fuel and motor oil.
Arthur W. H. Chan (1482586) +7 more
core +1 more source
Preparation and determination of configuration of 3-halogeno-3-methyl-5 alpha-cholestane epimers
3α- Chloro- 3β- methyl - and 3β- chloro- 3α- methyl - 5α- cholestane were prepared by reaction of hydrochloric acid with the two epimeric 3- hydroxy-3-methyl-5α-cholestanes.
Vanrobays, M. +2 more
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On the Conversion of Cholestanol into Allocholic Acid in Rat Liver [PDF]
The early steps in the conversion of cholestanol into allocholic acid were studied in homogenates of rat liver. The 20000 ×g supernatant fluid was found to catalyze 7α‐hydroxylation of cholestanol. Under the same conditions 7α‐hydroxylation of 5α‐cholestan‐3α‐ol and 5α‐cholestan‐3‐one was insignificant.
I, Björkhem, J, Gustafsson
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The Metabolism of Cholestanol, Cholesterol, and Bile Acids in Cerebrotendinous Xanthomatosis [PDF]
The metabolism of cholesterol and its 5-dihydro derivative, cholestanol, was investigated by means of sterol balance and isotope kinetic techniques in 3 subjects with cerebrotendinous xanthomatosis (CTX) and 11 other individuals. All subjects were hospitalized on a metabolic ward and were fed diets practically free of cholesterol and cholestanol. After
G, Salen, S M, Grundy
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Deposition of Cholesterol and Cholestanol in Experimental Rabbit Atherosclerosis.
SummaryContrary to the original findings it is established that cholesterol-C14 and cholesterol-H3 are deposited in tissues of rabbits in exactly the same way. The reason for the discrepancy in deposition of the two substances in earlier experiments was found in the presence of chemically negligible traces of cholestanol-H3 which had then not been ...
E, SCHWENK, Y, OMORI, E, JOACHIM
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