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JP05221915 |
PURPOSE: To obtain a new benzoquinone derivative useful as an antioxidant and an anti-inflammatory agent. CONSTITUTION: A 1,4-benzoquinone derivative of formula I [R1 is (CH2)m= CH(CH2)nCH3 (m is integer of 2-15; n is integer of 1-5; eit...
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JP05194307 |
PURPOSE: To obtain bequinostatin B having immunomodulating action and expected to be useful especially as an immunoactivating agent from bequinostatin A in high yield. CONSTITUTION: Carboxyl group of bequinostatin A of formula I which is...
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JP05194784 |
PURPOSE: To photo-cure a composition obtained by photopolymerizing photopolymerizable organic materials such as epoxy resins to a greater depth and thickness. CONSTITUTION: Photopolymerizable organic resin compositions are comprised of (...
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JP05194204 |
PURPOSE: To provide an anti-male sex hormone preparation of high safety, having no hormone-like activity, containing a rosewood extract or a neoflavone compound. CONSTITUTION: The objective anti-male sex hormone preparation containing a ...
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JP05163191 |
PURPOSE: To provide the subject new compound exhibiting excellent characteristics as a pigment component for fluoro coatings, etc., or as a functional pigment such as a dichroismic pigment for polarizing films and further useful as an in...
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JP05155803 |
PURPOSE: To economically obtain a vitamin K condensate in a high concentration ratio by a mild method by extracting a deodorized distillation product containing vitamin K produced as a by-product in a purification process of vegetable oi...
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JP05155804 |
PURPOSE: To produce a high-purity chloranil being readily handleable and having high bulk specific density by chlorinating a hydroquinone under mild conditions and with a simple operation method. CONSTITUTION: In a method of producing a ...
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JP05140022 |
PURPOSE: To produce readily handleable high-purity chloranil having a high bulk specific gravity by chlorinating hydroquinone under mild conditions according to a simple method for operation. CONSTITUTION: Hydroquinone is dissolved in a ...
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JP05140021 |
PURPOSE: To produce readily handleable high-purity chloranil having a high specific gravity by chlorinating hydroquinone under mild conditions according to a simple method for operation. CONSTITUTION: Hydroquinone is dissolved in a nonun...
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JP05097765 |
PURPOSE: To provide a new compd. as an intermediate for the synthesis of 2-substd.-3-hydroxy-1,4-naphthoquinone which is useful for prevention and treatment for infections by protozoan. CONSTITUTION: This invention provides a compd. expr...
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JP05085973 |
PURPOSE: To directly obtain in high efficiency an aromatic hydroxyl compound such as phenol highly important as an industrial feedstock, from an aromatic compound like benzene and oxygen. CONSTITUTION: Using a catalyst, a combination of ...
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JP05078240 |
PURPOSE: To obtain the subject composition capable of improving the absorption of ubidecarenone known as an agent effective for the improvement of coronary function to keep high concentration in blood and having high stability and safety...
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JP05078321 |
PURPOSE: To obtain a new quinone derivative useful for preventing and treating asthma and hepatic diseases, having two pharmaceutically inhibitory actions on leucotriene production and thromboxane synthesis. CONSTITUTION: A compound of f...
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JP05058941 |
PURPOSE: To obtain naphthacenequinones useful for the chemical storage of information as photochromic systems for contrast formation, light absorption or information recording. CONSTITUTION: The naphthacenequinones are compds. of formula...
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JP05051346 |
PURPOSE: To provide novel phthalide and quinoline found in rhizome of Cnidium officinale as a crude drug, having lipoperoxide production-inhibitory activity effective for the therapy of circulatory diseases. CONSTITUTION: The objective c...
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JP05039242 |
PURPOSE: To obtain a new anthracycline compound having low toxicity and excellent antitumor activity, useful as an antitumor agent as well as an intermediate for anthracycline based antibiotics. CONSTITUTION: A compound expressed by form...
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JP05032903 |
PURPOSE: To obtain a new safflower pigment having excellent stability and characteristic coloring and insoluble in water and useful for coating, dye, cosmetic, etc. CONSTITUTION: A compound expressed by the formula [(n) is 1-15]. For exa...
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JP05004981 |
PURPOSE: To obtain the subject novel compd. which is useful as an intermediate for production of d-α-tocophenol (natural vitamin E). CONSTITUTION: A compd. of formula I (R is an ether protecting group). For example, (1RS,3R,7R,11R)-1-(2...
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JP04364146 |
PURPOSE: To produce vitamin K4 and its diacetate useful as drugs for preventing hemorrhage, etc., more easily and cost effectively than the conventional process. CONSTITUTION: 1-Acetoxy-1,3-diene and 2-methylbenzo-1,4-quinone are brought...
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JP04356429 |
PURPOSE: To provide a method for highly selectively and continuously producing a phenol compound or quinone compound without producing by-products. CONSTITUTION: The selective oxidation of a substituted aromatic compound is characterized...
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JP04356435 |
PURPOSE: To provide a propene derivative useful for producing a 4- hydroxytetrahydropyrane derivative exhibiting a blood lipid-lowering action due to a strong HMG-CoA reductase-inhibiting activity. CONSTITUTION: A compound of formula I o...
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JP04330010 |
PURPOSE: To obtain the subject agent useful for the treatment or prevention of progression of central regressive diseases by using an o-quinone derivative as an active component. CONSTITUTION: The objective agent contains, as an active c...
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JP04330036 |
PURPOSE: To obtain a semisynthetic diastereotopically pure N- glycidylanthracycline which has an inhibitor activity against cellular growth and is suitable for the treatment of cancer. CONSTITUTION: This compd. is expressed by formula I....
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JP04300848 |
PURPOSE: To provide a novel benzoquinone compd. important for producing a triphenodioxazine deriv. and more particularly an asymmetric triphenodioxazine deriv. useable as a dye chromophore. CONSTITUTION: The benzoquinone compd. of formul...
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JP04300849 |
PURPOSE: To provide a novel compound having an anti-tumor activity, especially an activity to overcome the resistance of tumors resistant against many drugs, and having low toxicity, the use thereof and a method for the production thereo...
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JP04297434 |
PURPOSE: To obtain an anthraquinone compd. useful for production of dyes, paper pulp or hydrogen peroxide from phthalic anhydride and a benzene deriva tive without the need for executing sepn. and recovery of an intermediate prod uct whi...
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JP04226972 |
PURPOSE: To provide a new 8-fluoroanthracyclin glycoside deriv. which is increased in the activity and selectivity of the known glycoside having an antitumor property and has the excellent antitumor property and also provide the pharmace...
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JP04224538 |
PURPOSE: To provide the preparation process of an alkyltetrahydroanthrahydroquinone-containing solution, that of alkyltetrahydroanthrahydroquinone or alkyltetrahydroantraquinone and that of hydrogen peroxide. CONSTITUTION: Alkylanthraqui...
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JP04221337 |
PURPOSE: To produce an anthraquinone compound from a para-substituted benzene and phthalic anhydride as raw materials. CONSTITUTION: 1,4-Dimethylanthraquinone is produced from para xylene and phthalic anhydride in the presence of a heter...
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JP04211035 |
PURPOSE: To obtain a new phenanthrene derivative and a salt thereof having inhibitory activity against interleukin-1 and useful as an adjuvant arthritis depressor. CONSTITUTION: A compound shown by formula I [group A-B is group shown by ...
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JP04211630 |
PURPOSE: To oxidize efficiently a variety of hydroxy-containing aromatic compounds by contact with oxygen in a specific alcohol in the presence of a cobalt (II) compound such as cobalt (II) naphthate and a specific primary aliphatic amin...
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JP04210958 |
PURPOSE: To obtain new naphthacenequinones used for contrast formation or light absorption for reversible photochromic systems. CONSTITUTION: A compound of formula I or II [R is 6-14C aryl which may have substituents (alkyl, alkoxy, alky...
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JP04178341 |
PURPOSE: To produce the title substance with hardly forming any by-products by bringing an aromatic compound providing the title compound by oxidation into contact with an H2-containing gas and an O2-containing gas in the presence of a p...
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JP04164092 |
NEW MATERIAL:A compound expressed by formula I (R and X are H or hydroxyl-protecting group). EXAMPLE: A compound expressed by formula II. USE: A carcinostatic agent. PREPARATION: γ-Rhodomycinone is treated with trifluoroacetic anhydride...
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JP04154737 |
PURPOSE: To provide a pharmaceutical composition containing a biphenyl derivative or a phenyl derivative as an active component and having an action to promote the survival and growth of cholinergic nerve cell of central nervous system a...
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JP04134045 |
PURPOSE: To obtain chloranil for intermediate for agricultural chemical, pigment, etc., by reacting readily available hydroquinone, benzoquinone or chlorinated derivative thereof with chlorine using a mixed solvent of water or hydrochlor...
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JP04112820 |
PURPOSE: To obtain a hair-dye enabling fast-dyeing of hair without damaging the hair, free from stimulation and giving excellent feeling in use by using 1,2-hydroxy-1,4-naphthoquinone in combination with an organic compound containing ni...
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JP04077421 |
PURPOSE: To obtain a light-stabilized ubidecarenone-containing composition useful for chronic hypertension, etc., by mixing a coloring matter to ubidecarenone. CONSTITUTION: Ubidecarenone is mixed with a coloring matter. Used coloring ma...
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JP04069353 |
PURPOSE: To efficiently obtain the subject compound which is an intermediate for pigments, germicides, etc., and chloranil electrodes, additives for lubricating oils, etc., in high purity with good operating efficiency by reacting p-amin...
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JP04049274 |
NEW MATERIAL:Naphthaceno[1,12-cd:4,5-c'd']bis[1,2]diselenol of formula I, 1,4,5,12-tetrachloronaphthacene of formula II, 1,4,5,5,12,12-hexachloro-5,12- dihydronaphthacene of formula III and 2,3-dihydro-5,12-dihydroxy-1,4- naphthacenequin...
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JP04049259 |
NEW MATERIAL:A toluquinone compound of formula I or II. USE: A medicine such as cerebral circulation improving agent, antiinflammatory agent, face paint or antifungal agent. Giving vasohypotonic, antiinflammatory, melanization-inhibitory...
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JP04036260 |
NEW MATERIAL:Propene derivatives shown by formula I (R1 is H or methyl, when R1 is H, R2 and R3 are H or 2-methyl-2-propenyl, and when R1 is methyl, R2 and R3 are H or 2-propenyl; R4 is H or OH) and formula II. EXAMPLE: 3,5-Dimethyl-2-(2...
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JP04036253 |
NEW MATERIAL:An optically active compound expressed by formula I [R1 to R3 are H or 1-4C alkyl; R4 and R6 are OH or protected OH, and further R4 is oxo (in said case, benzene ring has benzoquinone structure); R5 and R8 are OH or acyloxy,...
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JP03287557 |
PURPOSE: To obtain 1,4-benzoquinone in high purity and yield using industrial easy operation by dropping an aqueous solution of an oxidizing agent into hydroquinone in the presence of a metallic vanadium salt, dilute sulfuric acid and an...
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JP03275642 |
PURPOSE: To efficiently obtain the title compound in high purity by adding a diene compound to a product formed by oxidation of a 2-substituted naphtha lene followed by heating and by separating and removing the resulting 6 substitu tion...
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JP03258745 |
PURPOSE: To efficiently and economically obtain high-quality chloranil while improving solubility of product in reacting hydroquinone with a chlorine gas in a reaction solvent, by using an acetic acid-water mixed solvent or an acetic aci...
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JP03246250 |
PURPOSE: To advantageously obtain chlorinated naphthoquinones by chlorinating the subject compounds with a hydrochloric acid solution at a specific concentration and hydrogen peroxide solution using a metal and metal chloride as a cataly...
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JP03246242 |
NEW MATERIAL:An optically active (S)- or (R)-pentane compound expressed by formula I (R1, R2 and R3 are H or 1-4C alkyl; R4 is hydroxy, protected hydroxy or oxo, provided that the benzene ring in the formula becomes the benzoquinone ring...
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JP03220155 |
PURPOSE: To obtain hypericin, by reacting emodin enthrone as a starting material with an oxygen-transfer reagent in an aromatic tertiary amine solvent in the presence of a redox catalyst and a secondary amine to form protohypericin and s...
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JP03215481 |
NEW MATERIAL:The compound of formula I (R1 to R3 are H or 1-4C alkyl; the steric configuration of the chiral center carbon atom labeled with * is S or R). EXAMPLE: (S)-(-)-6-hydroxy-2,5,7,8-tetramethylchroman-2-ethanol of formula II. USE...
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