منابع مشابه
Enzymatic synthesis of steroid sulfates.
De Meio and Lewycka (1) have obtained indirect evidence that conjugation of dehydroisoandrosterone with sulfuric acid occurs in a system consisting of microsome-free supernatant fluid of rat liver, adenosine triphosphate (ATP), and magnesium and sulfate ions. They showed that, following incubation, some of the Zimmermann-positive material remains in the aqueous phase after ether extraction at p...
متن کاملSynthesis of cyclic sulfates by halocyclization.
[reaction: see text]. We report the synthesis of cyclic sulfates by halocyclization. The resulting cyclic sulfate products can be opened selectively with sodium azide to transform them into highly functionalized compounds that contain azide, alcohol, and halide groups.
متن کاملSynthesis of Flavonoid Sulfates. II. The Use of Aryl Sulfatase in the Synthesis of Flavonol-3-sulfates*
There has been an increasing number of reports in recent years on the natural occurrence of flavonoid sulfates in the plant kingdom [2—21]. This considerable interest seems to be related to their suggested role in the detoxification of excess sulfate in response to high sulfur environment [2], From structural point of view, the naturally occurring flavonoid sulfates are derivatives of common hy...
متن کاملBile acid sulfates. I. Synthesis of lithocholic acid sulfates and their identification in human bile.
Sulfate esters of lithocholic, glycolithocholic, and taurolithocholic acids were synthesized using sulfur trioxide in pyridine; they were purified by crystallization from methanol or ethanol as the diammonium salts, and their chemical compositions, infared spectra, and chromatographic behavior were determined. Strong alkaline hydrolysis of these sulfates, as commonly performed during quantitati...
متن کاملSynthesis and Spectral Characterization of Oh - Bearing Ferric Sulfates
2514 for XXXXIII Lunar and Planetary Science Conference (2012, Houston, TX) SYNTHESIS AND SPECTRAL CHARACTERIZATION OF OH-BEARING FERRIC SULFATES. Yanli Lu and Alian Wang, Dept. of Earth & Planetary Sciences, McDonnell Center for Space Sciences, Washington University in St. Louis ( [email protected], [email protected] ) Ferric sulfates on Mars: Among the Martian sulfates, Caand Mg-sulfat...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1972
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.20.187