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Class 536/120 - Ethers


Subclass of Class 536 - Organic compounds -- part of the class 532-570 series
Definition: Compounds having the general formula ROR", wherein
No. of patents: 450
Last issue date: 12/22/2009


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NumberTitleIssue Date
5424421Synthesis of carminic acid and principal intermediates
The invention relates to the synthesis of 6-deoxykermesates, 6-deoxykermesic acid, and carminic acid, based on a reaction of a 2-halogenonapthazarin with a bis-trimethylsilyl-diene....
06/13/1995
5414079Oxidized cellulose
A method for making an oxidized cellulose product from a cellulose material is disclosed. The method involves oxidizing a cellulose material into an oxidized cellulose product, comprising treating the cellulose material with a hypochlorite solution having...
05/09/1995
54100361',6,6'-triamino- and 6,6'-diamino- sucrose derivatives
Sucrose derivatives: 1',6,6'-tri-O-methanesulfonyl-2,3,3',4,4'-penta-O-methylsucrose; 6,6'-diamino-6,6'-dideoxy-1',2-anhydrosucrose; 1',6,6'-triazido-O-1,6,6'-trideoxy-2,3,3,4,4'-penta-O-methylsucrose; and 1',6,6'-triamino-1',6,6'-trideoxy-2,3,3',4,4...
04/25/1995
5410037Process for silylizing carbohydrates, and use of the silylized carbohydrates
There is described a process for silylizing carbohydrates in liquid nitrogen compounds, the carbohydrates being reacted under pressure in an autoclave at a tempperature of about 0° to 200° C. with a silylizing agent of the formula (I) ##STR1## ...
04/25/1995
5405953Microfibrillated oxycellulose
Microfibrillated oxycellulose suitable for use as a carrier in agricultural, cosmetic, and topical and transdermal drug products, and as a binder and disintegrant in the making of tablets, is prepared by the oxidation of cellulosic materials with persulfa...
04/11/1995
5393876Process for producing maltooligosaccharide derivatives
A polyacyl maltooligosaccharide derivative which is a precursor of a maltooligosaccharide derivative having modified groups at the 6-position or 4- and 6-positions of non-reducing end glucose unit and being effectively used as a substrate for measuring &#...
02/28/1995
5391722Acid-catalyzed fabrication of precursors for use in making polyols using double metal cyanide catalysts
The present invention relates to a process for making a polyol which comprises the steps of: (a) fabricating a propoxylated polyhydric initiator by reacting propylene oxide with a polyhydric initiator in the presence of an acid catalyst, said reaction bei...
02/21/1995
5387675Modified hydrophobic cationic thickening compositions
Water soluble quaternary ammonium ethers of polysaccharides or polyols wherein the quaternary ammonium ether substituents correspond to the formula ##STR1## wherein R1 is a monohydroxylated or polyhydroxylated alkyl group containing b...
02/07/1995
53860162",3",4'-tri(acetyl)-4",6"-ethylidine-ଲ-D-glucopyranosides, their preparation and their use for the preparation of 4'-demethylepipodophyliotoxing ethylidene-ଲ-D-glucopyranoside
The invention relates to 2",3",4'-tris(acetyl)-4",6"-ethylidene-ଲ-D-glucopyranosides, their preparation and their use for the preparation of 4'-demethylepipodophyllotoxin ethylidene-ଲ-D-glucopyranoside. The compounds of the invention are ...
01/31/1995
5386019Synthesis of inhibitors of calmodulin-mediated enzymes including KS-501, KS-502 and their enantiomers
The total synthesis of a group of compounds with inhibitory effects on calmodulin-mediated enzyme activities has been accomplished. Among these synthesized compounds are KS-501 and KS-502. Other compounds that have been synthesized by the described scheme...
01/31/1995
5382570Sulfated glycosaminoglycanoid derivatives of the dermatan sulfate and chondroitin sulfate type
The invention relates to sulfated glycosaminoglycanoid derivatives of the dermatan sulfate and chondroitin sulfate type, of which N-sulfate, N-acetate, and hydroxy groups, are replaced by alkoxy, aryloxy, aralkoxy, or O-sulfate groups. The compounds have ...
01/17/1995
5378829Sulfated glycosaminoglycanoid derivatives of the heparin and heparan sulfate type
The invention relates to sulfated glycosaminoglycanoid derivatives of the heparin and heparin sulfate type, of which N-sulfate, N-acetate, and hydroxy groups, are replaced by alkoxy, aryloxy, aralkoxy, or O-sulfate groups. The compounds have antithromboti...
01/03/1995
5378834Process for purifying products containing esters of a non-reducing sugar and one or more fatty acids
The invention relates to a process for purifying crude products containing esters of a non-reducing sugar like sucrose, and one or more fatty acids such as palmitic acid, stearic acid etc. by subjecting the crude esterification products to an extraction t...
01/03/1995
5371208Preparation of cross-linked linear polysaccharide polymers as gels for electrophoresis
A bed of transparent, water insoluble, charge-free crosslinked gel which is suitable for use in electrophoresis is prepared. The gel is formed by dissolving a linear polysaccharide, such as agarose, in a suitable solvent, such as water. This dissolution m...
12/06/1994
5367068Glass-like polysaccharide abrasive grit
The present invention relates to a method for treating, and in particular for abrading surfaces, utilizing glass-like polysaccharide grits. The invention also extends to novel glass-like polysaccharide products, especially starches, and to processes for t...
11/22/1994
5362861Continuous bleaching of alkylpolyglycosides
A continuous method of bleaching an alkylpolyglycoside, substantially free of alcohol, with peroxy compounds, preferably hydrogen peroxide, which is highly efficient to provide an unexpected high degree of color reduction from a dark brown to a light, whi...
11/08/1994
5360903Glass-like polysaccharide abrasive grit
The present invention relates to a method for treating, and in particular for abrading surfaces, utilizing glass-like polysaccharide grits. The invention also extends to novel glass-like polysaccharide products, especially starches, and to processes for t...
11/01/1994
5358936Anionic furanose derivatives, methods of making and using the same
A glucofuranose derivative substituted at the 3,5,6- or 3,6-positions with a radical that provides an anionic charge at physiological pH values is disclosed, as are pharmaceutical compositions, and methods of making and using the same. The compounds are u...
10/25/1994
5344924Solvent-free synthesis of ethereally substituted blocked monosaccharides and the selective hydrolysis thereof
A solvent-free method for synthesizing an ethereally-substituted, blocked monosaccharide comprising the steps of: 1) mixing, in the absence of solvent, a partially blocked monosaccharide unblocked at one position, an alkyl halide or a substituted alkyl halide,...
09/06/1994
5334505N- and O-substituted aminophenols, method and use for diagnosis
The present invention provides N- and O-substituted aminophenol derivatives of the general formula ##STR1## wherein R1, R2, R3, G and L are as hereinbefore defined. The present invention also provides intermediates fo...
08/02/1994
5320849Anti-virus agent
An oral anti-virus agent containing a polysaccharide having the following chemical structure as an active component, ##STR1## (wherein n is an integer of at least 16)....
06/14/1994
5319048Non-caloric bulking agents for food for replacement of sugar or starch
A new composition of matter that can be substituted as a bulking agent for sugar or starch to reduce the caloric content of foods comprising the polymeric product of the reaction of a water-soluble polyol with a di- or tri-epoxide, in water containing a w...
06/07/1994
5312907Glycosiduronic acids
Glycosiduronic acids, such as alkyl glycosiduronic acids or alkenyl glycosiduronic acids, which may be used in the preparation of surfactant compositions, such as detergents and cleansers, are prepared by reacting an oxidized mono-, oligo-, or polysacchar...
05/17/1994
5288859Process for the preparation of glycosyl azides
A process for stereospecific preparation of glycosyl azides by reacting a metal azide with a glycosyl phosphate triester having the phosphate group cis to the adjacent C-2 substituent is disclosed....
02/22/1994
52833281-triacontanol derivatives
The present invention relates to compounds of the formula I [CH3 --(CH2)29 --O--]m --R (I) wherein if m stands for 1, then R represents a group derived from a mono- or di- or oligosaccharide by removing the hy...
02/01/1994
5278303Polymer-supported solution synthesis of oligosaccharides
This invention relates to the preparation of oligosaccharides, using polymer supported methodology. By this method, which offers anomeric control, oligosaccharides are produced very rapidly in comparison with known methodologies. Thus, there is disclosed ...
01/11/1994
5270461Benzoate esters of alkoxylated methyl glucosides
Benzoic acid esters of an ethoxylated methyl glucosides and of a propoxylated methyl glucosides exhibit enhanced characteristics that make these esters ideally suited for skin and hair care compositions. These esters demonstrate enhanced capabilities as f...
12/14/1993
5256651Hydrophilic-hydrophobic derivatives of polygalactomannans containing tertiary amine functionality
Triple derivatives of polygalactomannan i.e., dialkylaminoalkyl ether-hydroxyalkyl ether - long aliphatic chain ether of polygalactomannan, are useful as thickening agents for aqueous fluids....
10/26/1993
5247072Carboxyalkyl polysaccharides having improved absorbent properties and process for the preparation thereof
Disclosed is a method for producing a water-swellable, generally water-insoluble, carboxyalkyl polysaccharide having improved absorption properties. The method involves forming a solution of carboxyalkyl polysaccharide and water, recovering the carboxyalk...
09/21/1993
5243072Betaine group-containing polysaccharides with recurring anhydroglucose units, their synthesis and their use in cosmetic preparations
Betaine group-containing polysaccharides with recurring anhydroglucose units of the average, general formula ##STR1## are disclosed. In this formula the R1 groups are the same or different and represent methyl, ##STR2## in which ...
09/07/1993
5233032Hydrophobically modified hydroxybutyl ethers of polygalactomannan
Polygalactomannans containing a hydroxybutyl ether substituent and a hydrophobic substituent can be used in the fracturing of subterranean formations....
08/03/1993
5225606Alk-1-enyl ethers
This invention relates to the alk-1-enyl ether reaction product of a hydroxylated compound and an alk-1-enyloxy oxirane containing from 0 to 95% alkyl epoxide....
07/06/1993
5220005Substituted adamantyl dioxetanes
Dioxetane compounds reactable with an enzyme to release optically detectable eneregy are disclosed. These compounds have the formula: ##STR1## wherein T is a carboxylic acid or methoxy substituted adamantyl group bound to the ring through a spiro bon...
06/15/1993
5212299Glyceryl agarose and borate compositions
Aqueous gel compositions and their use in electrophoresis, and anhydrous compositions useful in the preparation of the aqueous gel compositions. The aqueous gel compositions comprise: A. water, B. at least one di- or tri-hydroxy C2-4 alkyl ether moiety (...
05/18/1993
5212293Process for the preparation of deoxynucleosides
An improved process for the preparation of 2' and 3'-(halo-substituted)-2',3'-dideoxy nucleosides by reacting a protected anhydrothymidine compound with a halogenating composition containing a substituted organoaluminum compound which exhibits greater sol...
05/18/1993
5191072Lipid A monosaccharide analogues
Lipid A monosaccharide analogues of the following general formula: ##STR1## wherein R1 is a hydrogen atom or a hydroxyl group, 1 is an integer of 8-14, m is an integer of 11-17 integer, and n is 8-14 integer....
03/02/1993
5185436Esters of normal butyric acid and their use as pharmaceuticals
Compounds which are hydrolyzed in vivo to n-butyric acid are esters of butyric acid in which the alcohol group is selected from the group consisting of polyhydric alcohols, cyclic and acyclic aldose or ketose monosaccharides and their acetonides. Of parti...
02/09/1993
5179202Reaction product of grafted dextranomer and a phthalocyanine dye
Polycyclic mutagens are removed from aqueous or organic solutions by contacting the solution with a grafted dextranomer adsorbent which contains hydroxypropyl groups covalently linked to a reactive phthalocyanine dye....
01/12/1993
5179083Coating composition containing as thickeners polygalactomannans modified with hydrophilic and hydrophobic groups
Water-borne coating compositions are made, using as a thickening agent, a polygalactomannan having both hydrophilic and hydrophobic substituents....
01/12/1993
51663341',2,3,3',4,4'-hexa-O-methylsucrose
A 1', 2,3,3',4,4'-hexa-O-methylsucrose compound is disclosed which is useful as an intermediate compound to make water-absorbent polyesters and polyethers. This compound may be used as an intermediate and oxidized to a dicarboxylic acid to make other nove...
11/24/1992
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