Synthesis and Cosmetic Whitening Effect of Glycosides Derived from Several Phenylpropanoids
نویسندگان
چکیده
منابع مشابه
Synthesis and cosmetic whitening effect of glycosides derived from several phenylpropanoids.
Plant-derived phenylpropanoid compounds (4-ethyl-2-methoxyphenol, 2,6-dimethoxyphenol, 2,3-dimethoxyphenol, 3,4-dimethoxyphenol, 3,5-dimethoxyphenol, 3,4-dihydroxycinnamic acid, 4-hydroxy-3-methoxycinnamic acid, and 3-hydroxy-4-methoxycinnamic acid) were glycosidated to form glycoside compounds. We evaluated the effects of these compounds on the inhibition of tyrosinase and melanin synthesis an...
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کاتالیست یک سنتز جدید برای تیواترها توصیف شده است. واکنش الکل ها با آریل، هتروآریل و آلکیل تیو ل ها درحضور 1،3،5- تری آزو- 2،4،6- تری فسفرین-2،2،4،4،6،6 هگزاکلراید ((tapc به عنوان یک کاتالیست موُثر، بازده های خوب تا عالی از تیواترها را حاصل می کند. علاوه براین، واکنش تحت شرایط بدون فلز و بدون حلال پیش می رود، بنابراین یک مکمل جالب برای روش های شناخته شده سنتز تیواترها ارائه می دهد. یک مکانیسم ا...
15 صفحه اول[Xeesal: Cosmetic skin whitening in subsaharan Africa].
The use of skin lightening products is a widespread practice in sub-Saharan Africa. We observed this practice during a cooperative project conducted in Senegal. In this letter we do not provide an in-depth study or a detailed analysis, rather we give an outline of this practice, illustrating it with anecdotal cases that required attention due to the adverse effects caused by the skin lightening...
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Depigmentation and skin lightening products, which have been in use for ages in Asian countries where skin whiteness is a major esthetic criterion, are now also highly valued by Western populations, who expose themselves excessively to the sun and develop skin spots as a consequence. After discussing the various possible mechanisms of depigmentation, the different molecules that can be used as ...
متن کاملEnzymatic synthesis of glycosides: from natural O- and N-glycosides to rare C- and S-glycosides
Carbohydrate related enzymes, like glycosyltransferases and glycoside hydrolases, are nowadays more easily accessible and are thought to represent powerful and greener alternatives to conventional chemical glycosylation procedures. The knowledge of their corresponding mechanisms has already allowed the development of efficient biocatalysed syntheses of complex O-glycosides. These enzymes can al...
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ژورنال
عنوان ژورنال: YAKUGAKU ZASSHI
سال: 2006
ISSN: 0031-6903,1347-5231
DOI: 10.1248/yakushi.126.173