Optical Resolution and Absolute Configuration of Branched 4-Nonylphenol Isomers and Their Estrogenic Activities
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چکیده
منابع مشابه
Nonylphenol isomers differ in estrogenic activity.
Nonylphenol belongs to the most investigated xenohormones acting at the estrogen receptor. Technical nonylphenol contains approximately 20 para-substituted isomers. Because of limitations in testing and quantifying all 20 isomers in the mixture, the linear form, 4n-NP, is often used as a reference substance, even though it is not present in the technical mixture. Here, we report on the synthesi...
متن کاملProducts of aqueous chlorination of 4-nonylphenol and their estrogenic activity.
Seven reaction products (2-chloro-4-nonylphenol [NP], 2,6-dichloro-4-NP, trichlorophenol, 4-propyl-2'-hydroxyphenol, 4-isobutyl-2'-hydroxyphenol, 4-isoamyl-2'-hydroxyphenol, and 4-isopentyl-2'-hydroxyphenol) were identified by gas chromatography/mass spectrometry (GC/MS) in order to assess the estrogenic activity originated from 4-nonylphenol (4-NP) in drinking water. The estrogenic activities ...
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چکیده ندارد.
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* Research carried out at Brookhaven National Laboratory under the auspices of the U.S. Atomic Energy Commission. 1 Tissibres, A., J. D. Watson, D. Schlessinger, and B. R. Hollingworth, J. Mol. Biol., 1, 221 (1959). 2 Zubay, G., in Recent Progress in Microbiology (Montreal: University of Toronto Press, 1962), p. 65. 3 Gilbert, W., J. Mol. Biol., 6, 374 (1963). 4 Nirenberg, M. W., and J. H. Matt...
متن کاملOptical rotatory dispersion and absolute configuration. V. The absolute configuration of natural plasmalogen.
PLAWALOGENS are a group of aldehydogenic substances widely distributed in nature in both the animal and plant kingdom. 4 Their chemical structure is that of a c&l(alk-l’enyl) ether of a 2-acyl-3glycerylphosphate (I) where R” may be derived from choline, ethanolamine or serine. Hydrogenation and acid hydrolysis8 yielded chimyl and batyl alcohols (IIa and IIb), while enzymic hydrolysis followed b...
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ژورنال
عنوان ژورنال: Journal of Health Science
سال: 2007
ISSN: 1344-9702,1347-5207
DOI: 10.1248/jhs.53.177