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Matches 701 - 750 out of 863

Document Document Title
JPS61194029A
PURPOSE: To obtain geraniin, by extracting a plant of Aceraceae family with an organic solvent. CONSTITUTION: The dried leaf of a plant of Aceraceae family (e.g. Acer nikoense, Acer buergerianum, Acer saccharum, Acer palmatum, etc.; the ...  
JPS61189288A  
JPS61132502A
PURPOSE: An alkali hypohalite is used as an oxidizing agent to effect the reaction and the waste solution containing the resultant alkali halide is subjected to electrolysis to form alkali hydroxide and halogen, then alkali hypohalite is...  
JPS61118394A
Compounds of the formula wherein X is halogen; each R independently represents H, a C1-C4 alkyl group, a C2-C4 alkanoyl group, a phosphate group, or a sulfate, sulfonate, or benzoate group with the proviso that no more than one sulfate, ...  
JPS61100529A
PURPOSE: To produce the objective product in high yield, in the chemical dehydration reaction to produce a high-boiling compound having higher boiling point than an organic solvent, by carrying out the reaction while disilling out the pr...  
JPS6169785A
NEW MATERIAL:The compound of formula I [R11 is CH2R16 (R16 is OH, NH2, N3, etc.) or group of formula II; R12 is OH, H, N3, etc.; R13 is H, N3 or benzyloxy; R14 and R15 are H or benzyl; R22 and R23 are H, allyl, acetyl, methylthiomethyl, ...  
JPS6156192A  
JPS616836B2  
JPS6140297A
NEW MATERIAL:3'-Fluoro-3'-deoxykanamycin A of formula I or its salt. USE: An antibacterial agent against kanamycin-sensitive bacteria and kanamycin- resistant bacterial. PREPARATION: The compound of formula I can be prepared e.g. by cond...  
JPS6136293A  
JPS6112623A
PURPOSE: To provide the titled inhibiting agent containing benzaldehyde or 4,6-O- benzylidene-D-glucose as active component, effective to specifically suppressing encephalinase, and useful as an analgesic especially for carcinomatous pai...  
JPS60252419A
PURPOSE: To provide an anthelmintic for animal, containing a specific spiro- cyclic orthoester compound as an active component, and having remarkable anthelmintic effect to domestic animal and fowl. CONSTITUTION: The objective anthelmint...  
JPS6049639B2  
JPS6046189B2
Diacetone-2-ketogulonic acid is prepared by electrochemical oxidation of diacetone-sorbose in an aqueous alkaline medium in the presence of 0.001 to 1% of surfactant.  
JPS60190745A
PURPOSE: To obtain ceramide which is a lipid part of a sphingoglycolipid stereoselectively in high yield, by converting 1,2-0-isopropylidene-α-D-xylo-pentodialdo- 1,4-furanose as a starting material through a novel intermediate into the...  
JPS60185719A
PURPOSE: An antitumor agent that contains, as an active ingredient, staurosporine, thus showing marked and specific inhibition against the growth of human neuroblastoma cells, human cervical carcinoma cell and human leukemia cells, espec...  
JPS60184094A
PURPOSE: To obtain the titled compound industrially advantageously without separating an intermediate, etc., by subjecting formaldehyde to addition reaction with an N-substituted thiazolium salt in the presence of a specific amount of a ...  
JPS6033824B2
To separate the racemate (R,S)-cysteine, the racemate is condensed in an inert solvent with an enantiomerically enantiomeric monosaccharide of the group of aldoses having 4 to 7 carbon atoms to form the corresponding 2-substituted thiazo...  
JPS6029718B2  
JPS60109558A
Sulfamates of the following formula (I): (I) wherein X is O or CH2 and R1, R2, R3, R4 and R5 are as herein defined have been found to exhibit anticonvulsant activity and are thus useful in the treatment of conditions such as epilepsy. Fu...  
JPS6087282A
PURPOSE: To obtain the titled compound useful as an intermediate for organic synthesis at low cost in high yield, by reacting a polyhydric alcohol or epoxide with a ketone in the presence of an acidic ion exchange resin and a lower monoh...  
JPS6072895A
PURPOSE: To produce a ketal such as 2-ketogulonic acid, etc. useful as a synthetic intermediate of vitamin C, economically, in an industrial scale, by reacting 2-ketogulonic acid (ester) with a ketone in the presence of a ketalization ca...  
JPS6069092A
PURPOSE: To obtain industrially and advantageously a sugar ketal useful for protecting OH and a synthetic intermediate, by reacting a sugar with a ketone in the presence of antimony pentachloride or pentafluoride. CONSTITUTION: A sugar, ...  
JPS6069091A
PURPOSE: To obtain the titled compound as a synthetic intermediate for vitamin C in high yield, by reacting glucuronic acid or glucurono-6,3-lactone with a ketone in the presence of hydrogen iodide, antimony pentachloride or pentafluorid...  
JPS6054395A
The present invention provides compounds of the general formula: (I) in which R and R1, independently of one another, each represent a straight-chained or branched alkyl or alkoyl radical containing up to 6 carbon atoms or a phenyl radic...  
JPS6011720B2  
JPS602302B2  
JPS5929072B2
N,N-difluoroamines are prepared by fluorination of compounds containing a >C=N- bond using molecular fluorine or a hypofluorite in which the fluoroxy group is bonded to an inert electron attracting group, such hypofluorites including flu...  
JPS59116287A  
JPS59112996A  
JPS5967296A
PURPOSE: To obtain the titled compound useful as an intermediate for synthesizing X-ray contrast medium, etc. industrially advantageously using inexpansive raw materials without causing bad smell, waste, etc., by oxidizing a specific glu...  
JPS5953496A  
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
To separate the racemate (R,S)-cysteine, the racemate is condensed in an inert solvent with an enantiomerically enantiomeric monosaccharide of the group of aldoses having 4 to 7 carbon atoms to form the corresponding 2-substituted thiazo...  
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
The invention concerns new xylite derivatives, methods for the production of these compounds as well as compositions containing them having growth regulatory activity for plants.  
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...  

Matches 701 - 750 out of 863