Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 701 - 750 out of 829

Document Document Title
JPS5911600B2  
JPS5911597B2  
JPS5942394A
NEW MATERIAL:The compound of formula I [R1 is alkyl(thio), alkoxy, or alkylsulfonyl; R2 is H, OH, alkoxy, lower alkanoyloxy, etc.; R3 is (protected) OH; R4 is lower alkoxy or lower cycloaliphatic-oxy substituted with ≥2 (protected) OH ...  
JPS5929684A
PURPOSE: To obtain the titled compound useful as a precursor for amino sugar in a short process, by reacting a 2,3-alkylidene-dioxybutanal with hydroxylamine hydrochloride in the presence of a base, dehydrating it. CONSTITUTION: A 2,3-al...  
JPS5910599A  
JPS58203999A
PURPOSE: To prepare a glucose compound useful as a drug, in high yield, by reacting dialkoxymethylbenzene, etc. with D-glucono-δ-lactone, and reducing the resultant 4,6-O-benzylidene-D-glucono-δ-lactone. CONSTITUTION: The objective 4,6...  
JPS58192897A  
JPS58192862A  
JPS58170797A  
JPS58167583A
PURPOSE: The reaction of a saccharide with a ketone is carried out in the presence of a combination of hydrogen halide and a small amount of copper, iron or their oxides, hydroxide or salts to produce a saccharide ketal used as a synthet...  
JPS58167582A
PURPOSE: The reaction of a saccharide with a ketone is carried out in the presence of a small amount of hydrogen iodide to give a saccharide ketal in high yield, used as a synthetic intermediate in saccharide chemistry with after-treatme...  
JPS58128366A  
JPS5831358B2  
JPS5855494A
PURPOSE: To obtain the titled compound useful as a synthetic intermediate, etc. industrially advantageously without requiring complicated after-treatment with suppressing side reactions such as self condensation of ketone, etc., by react...  
JPS5846066A  
JPS57200381A  
JPS57193495A
NEW MATERIAL:The compound of formulaI(R is lower alkyl; X1 and X2 are H or OH-protecting group). EXAMPLE: The compound of formula II. USE: Synthetic intermediate of pharmaceuticals having carcinostatic activity, etc. PROCESS: The compoun...  
JPS57181094A
NEW MATERIAL:A compound expressed by formulaI(Bn is benzyl). USE: A synthetic raw material for polysaccharide, containing amino groups, and useful as an inhibitor for blood coagulation and a blood clarifying agent. PROCESS: A compound ex...  
JPS57175197A
NEW MATERIAL:The compound of formula (M is potassium or sodium). USE: Antidote. PROCESS: For example, L-cysteine, D-glucuronolactone and sodium bicarbonate are dissolved in water, and the reaction occurs evolving carbon dioxide gas. The ...  
JPS57163376A
PURPOSE: To obtain the titled substance useful as a precursor for ascorbic acid economically in high yield, by oxidizing diacetone-L-sorbose with an oxygen- containing gas in the presence of a catalyst prepared by adding Pb, Bi, etc. to ...  
JPS57122012A  
JPS57114556A
NEW MATERIAL:The peptide compound of formulaI(R1 is n-octanoyl, stearoyl. n-docosanoyl, 2-acetoxypropionyl, etc.; R2 is H, methyl or benzyl; R3 is methoxy, carboxymethylamino, 1-methoxycarbonylethylamino, etc.; R4 is H, carboxy, methoxyc...  
JPS5724396A  
JPS5716896A  
JPS5643475B2  
JPS5643474B2  
JPS5643473B2  
JPS5643478B2  
JPS5642279B2  
JPS56118095A
PURPOSE: To prepare the titled compound useful as a synthetic intermediate of an X-ray contrast medium, in high yield and purity, by reacting an allofuranose derivative with triphenyl phosphine and iodine in the presence of imidazole. CO...  
JPS5638598B2  
JPS5695117A
PURPOSE: A drug composition having an analgesic, antipyretic and anti-inflammatory actions without a disorder action on digestive organs, and containing 1,2- O-isopropylidene-3,5-O-benzylidene-6-O-methyl-α-D-glucofura nose as a main con...  
JPS5626400B2  
JPS5625232B2  
JPS5665869A  
JPS5659789A
NEW MATERIAL:2,3-Diamino-2, 3-N, N'-carbonyl-2, 3, 5-trideoxy-5-C-carbomethoxypropane-D-ribofuranose. USE: Synthetic intermediate of (+)-biotin. Starting material to various synthetic organic compounds. Especially it is very useful in hi...  
JPS5659790A
NEW MATERIAL:Benzyl2,3-diamino-2,3-N,N'-carbonyl-2, 3, 5, 6-tetradeoxy-5, 6- didehydro-6-C-methoxycarbonylethylene-β-D-ribohexofuranosid e of formula I and benzyl2,3-diamino-2,3-N,N'-carbonyl-2,3-dideoxy-β-D-allofur anoside of formula ...  
JPS5619877B2  
JPS5645498A  
JPS563357B2  
JPS562996A
PURPOSE: To isolate the titled compound useful as a biochemical reagent, etc., ecnomically in an industrial scale, from an aqueous solution of specific lactone mixture, by maintaining the pH of the solution within a range to open the lac...  
JPS5549159B2  
JPS55154988A
NEW MATERIAL:A compound shown by the formula I [R is H or tetrahydropyranyl(THP)]. EXAMPLE: 6-C-( 1'-hex-trans-4'-en-1'-ynyl )-5,6-dideoxy-1,2-O-isopropylidene-α-D- xylohexofuranose. USE: A synthetic intermediate for various organic com...  
JPS55154990A
NEW MATERIAL:A compound shown by the formula I (Ms is methanesulfonyl; R1 and R2 an OH or form di-O-isopropylidene). EXAMPLE: 5-Dioxy-1,2-O-isopropylidene-5-C-(1'-hept-2',5'-trans, trans-dienyl)-3-O- mesyl-α-D-xylo-pentofuranose. USE: A...  
JPS55154989A
NEW MATERIAL:A compound shown by the formula I (R is H or tetrahydropyranyl). EXAMPLE: 5-Dioxy-1,2-O-isopropylidene-5-C-(1'-kept-2',5'-trans, trans-dienyl)-3- O-tetrahydro-pyranyl-α-D-xylo-pentfuranose. USE: A synthetic intermediate for...  
JPS5543509B2  
JPS55139398A  
JPS55500441A  
JPS5594394A
PURPOSE: To facilitate the separation and the purification of a lactone which is an intermediate of L-ascorbic acid useful as a food additive, by oxidizing an easily available, low-cost glucofuranose in an organic solvent in the presence...  
JPS5594395A
PURPOSE: To prepare the title compound useful as an intermediate of L-ascorbic acid for medical use, economically, in an industrial scale, by oxidizing diacetonesorbose with oxygen(-containing) gas, in an alcohol, in the presence of a Pd...  

Matches 701 - 750 out of 829