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| Number | Title | Issue Date |
| 7378558 | Method for producing carotenoids A process for preparing carotenoids, in which the process includes reacting a dialkoxy dialdehyde in a double Wittig condensation with a phosphonium salt of or in a double Wittig-Horner condensation with a phosphonate. The carotenoids include, for example, β-carote... | 05/27/2008 |
| 7071228 | Method of treating musculoskeletal and connective tissue inflammations A method of treating said musculoskeletal and connective tissue inflammations including osteoarthritis and associated articular and periarticular inflammations, and non-articular Rheumatism including capsulitis, tendonitis, fibrositis, and perarticular inflammations... | 07/04/2006 |
| 6894198 | Granular akali metal alkoxides and alkaline earth metal alkoxides An alkali metal alkoxide or alkaline earth metal alkoxide in granular form. ... | 05/17/2005 |
| 6743956 | Selective liquid phase hydrogenation of carbonyl compounds to give the corresponding alcohols in the presence of a Pt/ZnO catalyst The present invention relates to a process for selective liquid phase hydrogenation of carbonyl compounds of the general formula I, where R1 and R2 are identical or different and are each ind... | 06/01/2004 |
| 6743954 | Process for the preparation of meso-zeaxanthin A process for the preparation of optically pure acetylenediols of the formulae R-I and S-I and their further reaction to give meso-zeaxanthin are described. ... | 06/01/2004 |
| 6660888 | Process for producing retinol and intermediate compounds for producing the same There are disclosed a disulfone compound of formula (1): ##STR1## wherein Ar denotes an aryl group that may have a substituent, R1 denotes a hydrogen atom or a protective group of a hydroxyl group and the wavy line means that the disulfone compound is an ... | 12/09/2003 |
| 6552219 | Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediates There are provided a dihalogen derivative represented by formula (2): ##STR1## wherein X represents a halogen atom and R2 represents a protective group for a hydroxyl group; a process for producing the same; and a process for producing vitamin ... | 04/22/2003 |
| 6388124 | Dihalo-compound and process for producing vitamin A derivative There is disclosed a dihalo-compound of formula (1): ##STR1## wherein X1 and X2 represent different halogen atoms, R represents a hydrogen atom or a protective group for a hydroxyl group, and a process for producing vitamin A derivative v... | 05/14/2002 |
| 6384270 | Method for preparing vitamin A The invention relates to a process for making vitamin A from ethynyl-retro--ionol using an allene acetate as intermediate.... | 05/07/2002 |
| 6348622 | Vitamin a related compounds and process for producing the same There is provided a compound of the formula[I]: ##STR1## wherein R represents a hydrogen atom or a protective group for a hydroxyl group; and A represents a hydrogen atom, a halogen atom or a group of the formula A1: ##STR2## Q represents Q3: ##STR3#... | 02/19/2002 |
| 6245952 | Reduction of carbonyl compounds by a silane in the presence of a zinc catalyst The present invention relates to a process for the preparation of alcohols by reduction of the carbonyl function in substrates belonging to the class of aldehydes, ketones, esters or lactones, which substrates may contain unsaturated functions other than ... | 06/12/2001 |
| 6180670 | Retinoid conjugate compounds useful for the treatment of aging skin Skin aging and related conditions can be effectively treated with a conjugate of a retinoid and a bioactive organic acid preferably selected from among alpha-hydroxy acids, beta-hydroxy acids, and keto-acids; preferred conjugates include retinyl glycolyl ... | 01/30/2001 |
| 6150086 | Encapsulation of oleophilic substances and compositions produced thereby Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out ... | 11/21/2000 |
| 6146825 | Encapsulation of oleophilic substances and compositions produced thereby Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out ... | 11/14/2000 |
| 6117845 | C-linked analogs of N-(4-hydroxyphenyl) retinamide Disclosed are acid-stable compounds of Formula I: ##STR1## as well as pharmaceutical compositions containing the compounds as active ingredients, and methods to treat cancers in mammal, including humans, by administering one or more of the compounds ... | 09/12/2000 |
| 6087541 | Polyene alcohol derivative and process for producing the same There is disclosed a novel polyene alcohol derivative of the formula [I]: ##STR1## wherein, R represents a hydrogen atom or a protective group for a hydroxy group, and Y represents the following group: ##STR2## wherein, R represents a hydrogen ... | 07/11/2000 |
| 6001554 | Encapsulation of oleophilic substances and compositions produced thereby Multiple micro-encapsulations of a high concentration oleophilic substance using heat to set the primary particle renders the composition suitable for the production of free-flowing powders or beadlets. Microencapsulation involves forming an emulsion out ... | 12/14/1999 |
| 5973211 | Pigmenting efficiency of a natural xanthophyll by isomerization A method of isomerizing lutein to yield a mixture of epimers of zeaxanthin includes the following steps: mixing a lutein-containing extract in a glycol solution to obtain a mixture, treating the mixture with alkali to obtain an alkali-containing mixture, ... | 10/26/1999 |
| 5908957 | Isomerization process A process is disclosed for the catalyzed isomerization of a Z-isomer of a vitamin A compound or of a mixture of several of such isomers into a mixture of the corresponding all-E- and 13-Z-isomers of this vitamin A compound. The process utilizes nitrogen m... | 06/01/1999 |
| 5908868 | Retinol derivatives useful for enhancing immune response The present invention provides a purified retinoid compound characterized by a molecular mass of about 320 daltons and an atomic composition of C20 H32 O3. The present invention also provides a purified retinoid compound h... | 06/01/1999 |
| 5814612 | Retinol derivatives and uses thereof The present invention provides a purified retinoid compound characterized by a molecular mass of about 320 daltons and an atomic composition of C20 H32 O3. The present invention also provides a purified retinoid compound h... | 09/29/1998 |
| 5648563 | Retro-alpha-retinol derivative and uses of retro-alpha-retinol This invention provides a homogeneous retro-retinoid compound, a method of enhancing the growth of a cell in a vitamin A reduced environment, a method for enhancing transcription of a gene regulated by retinoid in a cell, and a method for enhancing an imm... | 07/15/1997 |
| 5637779 | Process for the preparation of vitamin A and new intermediates A process for the preparation of vitamin A which comprises condensing ethynyl-ଲ-ionol with the acetal of a C5 allylic halide in the presence of a catalytic amount of a copper-based catalyst and a base; hydrogenating the condensed compound... | 06/10/1997 |
| 5523494 | Process for the isomerization of lutein A process to obtain a product with a high zeaxanthin content, to be used mainly as an ingredient in poultry feed to enhance the pigmentation of broiler chickens and egg yolk, by reacting at a controlled temperature and pressure, marigold (Tagetes erecta L... | 06/04/1996 |
| 5521221 | Retro--retinol (4,14-retro-retinol) derivatives and uses of retro--retinol This invention provides a purified retro-retinoid compound characterized by a molecular mass of about 302 daltons. Also provided by this invention is a method of enhancing the growth of a cell in a vitamin A reduced environment which comprises contacting ... | 05/28/1996 |
| 5500415 | Process for the preparation of spherules of active principles and emulsions containing the spherules A process for the preparation of spherules and emulsions containing such spherules. A primary oil-in-water emulsion is formed containing particles comprising one or more active principles in oily form suspended in water, the water optionally containing at... | 03/19/1996 |
| 5449836 | Process for the preparation of vitamin A and intermediate compounds which are useful for this process A process for the preparation of vitamin A which preferably comprises bringing cyclogeranyl sulphone into contact with a C10 aldehyde acetal, halogenating the derivative obtained and then removing the halogen group and the sulphone, removing th... | 09/12/1995 |
| 5426247 | Process for the preparation of vitamin A and intermediate compounds which are useful for this process A process for the preparation of vitamin A which preferably comprises bringing cyclogeranyl sulphone into contact with a C10 aldehyde acetal, halogenating the derivative obtained and then removing the halogen group and the sulphone, removing th... | 06/20/1995 |
| 5426248 | Stable vitamin A A process for purifying vitamin A consisting of heating a vitamin A preparation in an inert atmosphere, at a temperature below 170° C. and a pressure of less than 4 mm of mercury, said heating taking place in a vessel shielded from light is disclosed. Th... | 06/20/1995 |
| 5382714 | Process for isolation, purification, and recrystallization of lutein from saponified marigold oleoresin and uses thereof A method of isolating, purifying and recrystallizing substantially pure lutein, preferably from saponified marigold oleoresin in its pure free form, apart from chemical impurities and other carotenoids. Lutein may be used as an analytical standard or in c... | 01/17/1995 |
| 5358972 | Retro-alpha-retinol(4-14-retro-retinol) derivatives and uses of retro--retinol This invention provides a purified retro-retinoid compound characterized by a molecular mass of about 302 daltons. Also provided by this invention is a method of enhancing the growth of a cell in a vitamin A reduced environment which comprises contacting ... | 10/25/1994 |
| 5329053 | Process for the manufacture of known odorants A novel process is described for the manufacture of a mixture of 6-(2',6',6'-trimethyl-cyclohex-1'-en-1'-yl)-4-methyl-hex-3-en-1-ol and -4-en-1-ol (I) and, respectively, of a mixture of [3a,5aଲ,9a,9bଲ]-dodecahydro-3a,6,6,9a-tetra... | 07/12/1994 |
| 5270041 | Sterols, their fatty acid esters and glucosides; processes for their preparation; spontaneously dispersible agents containing these compounds, and their use for treatment of tumors There are described antitumour sterols, their fatty acid esters and glucosides, processes for their preparation, spontaneously dispersible agents containing these sterols, their fatty acid esters and glucosides, and their use for treating tumours.... | 12/14/1993 |
| 5243094 | Derivatives of long chain fatty alcohols, their uses, particularly as cytotrophic and cytoprotective molecules, and pharmaceutical compositions containing them Derivatives of long-chain fatty alcohols, and methods of obtaining them, are provided, as well as pharmaceutical compositions containing derivatives and their uses, in particular in treating or preventing neuro-degenerative illnesses, conditions linked to... | 09/07/1993 |
| 5190876 | Method of modifying cellular differentiation and function and compositions therefor A method and composition for enhancing the action of biological response modifiers, such as promoting cellular differentiation, by using Vitamin A or an analog thereof and sphingosine or an analog thereof.... | 03/02/1993 |
| 5124083 | 3-substituted and 3,3-disubstituted 4-oxoretinoic acids and their esters There are disclosed 3-substituted and 3,3-disubstituted all-trans-4-oxoretinoic acids and 3-substituted and 3,3-disubstituted 13-cis-4-oxoretinoic acids and their lower alkyl esters.... | 06/23/1992 |
| 5096713 | Retinoic esters of L-cladinose, process for their preparation and their use in human of veterinary medicine and in cosmetic compositions Retinoic esters of L-cladinose have the formula ##STR1## wherein the ##STR2## radical is (all trans) retinoyl, (13 cis) retinoyl or etretinoyl, and R2 represents linear or branched alkyl having 1-24 carbon atoms; and the ... | 03/17/1992 |
| 5037655 | Method of stabilizing tretinoin A tretinoin-mineral oil-petrolatum product in which the ingredients are blended at about 90° C., which product retains its therapeutic activity despite storage at ambient conditions without the need for an antioxidant.... | 08/06/1991 |
| 4952716 | Ethynylcyclohexene compounds A process for the manufacture of compounds of the general formula ##STR1## wherein R1 signifies hydroxy or an etherified hydroxy group, and of zeaxanthin by converting a compound of the general formula ##STR2## wherein R1 h... | 08/28/1990 |
| 4929774 | Stable mixture containing oxidation-sensitive compounds, preparation thereof and use of a combination of substances for stabilizing oxidation-sensitive compounds A stable mixture of an oxidation-sensitive compound contains triglycerides, complexing agents and coating substances as well as the oxidation-sensitive compound.... | 05/29/1990 |
