681-57-2Relevant articles and documents
PLANT OR MICROORGANISM-DERIVED CAROTENOID-OXYGEN COPOLYMER COMPOSITIONS, METHODS OF IDENTIFYING, QUANTIFYING AND PRODUCING SAME AND USES THEREOF
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Paragraph 00109, (2017/09/21)
The present invention relates to carotenoid-oxygen copolymers, compositions, methods of identifying and quantifying carotenoid-oxygen copolymers in food and related sources, and methods of producing compositions comprising same. In one aspect the method of identifying and quantifying carotenoid-oxygen copolymers comprises an analysis of a low molecular weight marker compound in said sources. In another aspect the present invention provides a method of preparing compositions comprising said carotenoid-oxygen copolymers and/or enhancing levels of said copolymers in food sources in a sufficient and practically useful concentration to have beneficial effects in animals and humans, including beneficial immunological and health effects.
OPHTHALMIC COMPOSITIONS FOR TREATING OCULAR HYPERTENSION
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Page/Page column 45, (2008/06/13)
This invention relates to the use of potent potassium channel blockers or a formulation thereof in the treatment of glaucoma and other conditions which leads to elevated intraoccular pressure in the eye of a patient. This invention also relates to the use of such compounds to provide a neuroprotective effect to the eye of mammalian species, particularly humans.
Oxidation of α-Substituted Cyclohexanols by Nitric Acid
Smith, John R. Lindsay,Thomas, C. Barry,Whittaker, Mark
, p. 2191 - 2194 (2007/10/02)
The influence of α-substituents on the oxidative cleavage of cyclohexanol by nitric acid in the presence of copper(II) and vanadium(V) ions has been investigated.Following the initial oxidation to give the cyclohexanone, further reaction, leading to ring opening of the ketone, requires at least one α-hydrogen.Thus 2,2,6,6-tetramethylcyclohexanol is converted to the corresponding ketone whilst 2,2,6-trimethylcyclohexanol is oxidised to a mixture of dicarboxylic acids.The mechanisms of the oxidations are discussed and enolisation is shown to be the key to oxidative cleavage.For ketones that can give two alternative enols, reaction occurs predominantly via the more stable tautomer.
Process for the production of 3,3-dimethylglutaric
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, (2008/06/13)
Process for the production of 3,3-dimethylglutaric acid from isophorone. In a first step the isophorone is converted with ozone into an ozone-addition product. The ozone-addition product is converted by hydrolysis into 3,3-dimethyl-5-oxohexanoic acid. The latter is converted into 3,3-dimethylglutaric acid by treatment with hydrogen peroxide.
1,1-Alkanediol dicarboxylate linked antibacterial agents
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, (2008/06/13)
Useful antibacterial agents in which a penicillin and/or a beta-lactamase inhibitor are linked via 1,1-alkanediol dicarboxylates are of the formula STR1 where A is the residue of certain dicarboxyic acids, R3 is H or (C1 -C3), n is zero or 1 such that when n is zero R is P or B and R1 is the residue of certain esters, H or a salt thereof; and when n is 1, one of R and R1 is P and the other is B, and P is STR2 where R2 is H or certain acyl groups, and B is the residue of a beta-lactamase inhibiting carboxylic acid; a method for their use, pharmaceutical compositions thereof and intermediates useful in their production.
Bis-esters of dicarboxylic acids with amoxicillin and certain hydroxymethylpenicillanate 1,1-dioxides
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, (2008/06/13)
Antibacterial bis-esters of 1,4-cyclohexanedicarboxylic acids and alkane dicarboxylic acids wherein the ester moieties are derived from different alcohols; one alcohol being hydroxymethylpenicillanate 1,1-dioxide, or the 6-beta-hydroxymethyl or the 6-alpha-aminomethyl derivative thereof; and the other being 6-[D-(2-amino-2-(p-hydroxyphenyl)acetamido)]penicillanic acid (amoxicillin); and pharmaceutically acceptable salts thereof; a method for the use of said esters and their salts, and methods for their preparation.
CARBOXYLATION OF γ-BUTYROLACTONES WITH CARBON MONOXIDE USING HF-SbF5 SUPER ACID
Yoneda, Norihiko,Suzuki, Akira,Takahashi, Yukio
, p. 767 - 768 (2007/10/02)
γ-Butyrolactones react with carbon monoxide at -20 to 30 deg C and at atmospheric pressure in HF-SbF5 super acid media containing an excess of SbF5 to give dicarboxylic acids in good yields.