Crystal Structure of 1 .BETA.-Hydroxy-.BETA.-homopipitzolone (9-Hydroxy-2,6,9-trimethyltricyclo[6,3,1,01,6]dodeca-5,10,11,12-tetraone)
نویسندگان
چکیده
منابع مشابه
Alpha Hydroxy Acid (AHA) / Beta Hydroxy Acid (BHA)
AHAs act on both the epidermal and the dermal levels. When applied to the skin, AHAs stimulate the exfoliation of epidermal cells in the stratum corneum (s.c.) by interfering with the ionic bonding between these cells. This results in the sloughing off dull, rough skin and promotes cellular renewal. Initially used for treatment of hyperkeratosis and other skin conditions affecting s.c. turnover...
متن کاملSynthesis of 1-Hydroxy-2-(Prop-2'-Enyl) 9-Antrone
An efficient synthesis of the 1-hydroxy-2-(prop-2'-enyl)9-anthrone is described. Selective nitration of anthraquinone, reduction to the corresponding amine, diazotization and treatment by sulfuric acid solution afforded the 1-hydroxy-9,10-anthraquinone in good yield as the key intermediate. Reaction with allyl bromide/K2CO3 and subsequent selective reduction accompanie...
متن کاملStudies on the metabolism of beta-hydroxy- aspartic acid.
The content of beta-hydroxyaspartic acid was measured in the urine of man and several species of animals. The configuration of urinary beta-hydroxyaspartic acid was deduced to be L-erythro in form by chromatographic comparisons with authentic samples. An increased excretion of urinary beta-hydroxyaspartic acid was observed in cats when serine or thiamine was administered with glycine. Glycine-1...
متن کاملHydroxy Propyl-Beta-Cyclodextrin Summary for IND / IRB Submissions
Cyclodextrins are non-reducing cyclic glucose oligosaccharides resulting from the cyclomaltodextrin glucanotransferase (E.C. 2.4.1.19; CGTase) catalyzed degradation of starch. Their structures have been reviewed. There are three common cyclodextrins with 6, 7 or 8 D-glucopyranonsyl residues (α-, β-, and γ-cyclodextrin respectively) linked by α-1,4 glycosidic bonds. The glucose residues have the...
متن کاملDocking studies and anti-inflammatory activity of beta-hydroxy-beta-arylpropanoic acids.
The article describes a two-step synthesis of diastereomeric 3-hydroxy-2-methyl-3-(4-biphenylyl)butanoic acids. In the first step an intermediate alpha-bromo propanoic acid 1-ethoxyethyl ester was synthesized. The second step is a new modified Reformatsky reaction in presence of Zn in tetrahydrofuran (THF) at -5 to 10 degrees C between the previously synthesized intermediate and 4-acetylbipheny...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2003
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.19.801