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Matches 651 - 700 out of 863

Document Document Title
JPH0132834B2
A process for preparing diacetone-ketogulonic acid comprises oxidizing diacetonesorbose to diacetone-ketogulonic acid to an extent of about 30-95% by electrochemical oxidation or O2 oxidation; electrodialysing the resultant reaction solu...  
JPH0131517B2
The invention relates, inter alia, to a process for the provision of 6-amino-6-desoxy-2,3-O-isopropylidene- alpha -L-sorbofuranose derivatives which comprises treating a 2,3-O-isopropylidene-6-sulphonated- alpha -L-sorbofuranase with an ...  
JPH0130809B2
(A) Novel antigen derivs. (I) consist of an antigen to which at least one muramyl peptide is covalently bonded, opt. via a bridging gp. Prefd. cpds. are of formula (Ia): A-[(Z)m-MP]n (Ia) (A is an antigen residue; Z is a bridging gp.; MP...  
JP01157976A
NEW MATERIAL:A (4S, 5S)-4,5-cyclohexylidenedioxy-2-cyclopenten-1-one. USE: A drug. A synthetic raw material for prostaglandin and antibiotic. EXAMPLE: D-Ribose is reacted with silylenolized cyclohexane to give a novel compound shown by f...  
JPH01143894A
PURPOSE: To readily obtain the title compound having antiretrovirus action in high yield by subjecting an anhydro-mercaptodeoxyarabinofuranosylpurine derivative to desulfurizing hydrogenolysis reaction with a reducing agent. CONSTITUTION...  
JPH01143893A
NEW MATERIAL:A compound expressed by formula I (R1 is OH, amino, alkoxyl, alkylthio or H; R2 is H or amino) and salt thereof. EXAMPLE: 8,2'-Anhydro-8-mercapto-9-β-D-3'-deoxyarabinofuranosyladeni ne. USE: An antiretrovirus agent. PREPARA...  
JPH01139591A
PURPOSE: To obtain a device capable of wholly automatically synthesizing the title compound for research of saccharometabolism, etc., in high yield and selectivity in a short time, by reacting an alkaline aqueous solution with a 11C-labe...  
JPH01139594A
PURPOSE: To readily obtain the title nitrile useful as an intermediate for producing glucose labeled with an isotope in a short time by simple operation, by reacting an arabinose with a cyanogen compound expressed by the respective speci...  
JPH01139595A
NEW MATERIAL:A compound expressed by formula I (R1 is formula II or III; R2 is formula IV or II). EXAMPLE: 11-O-[{4-O-Isobutyryl-α-L-rhamnopyranosyl}(1→4)--{3-O-met hylbutyl-α-L- rhamnopyranosyl}(1→4)-α-L-rhamnopyranosyl(1→4)-α...  
JPH01128994A
NEW MATERIAL:A compound of formula I (R is 5W11C alkyl, 9C alkenyl; wavy lines represent axial or equatorial bonds). EXAMPLE: Methyl-4,6-0-hexylidene-α,D-glucopyranoside. USE: Flavor-maintaining agent. PREPARATION: Methyl-D-glucoside of...  
JPH01128993A
NEW MATERIAL:A compound of formula I (the wave lines represent axial or equatorial bonds). EXAMPLE: Methyl-4,6-0-(7-hydroxy-3,7-dimethyl)octylidene-α,B-glucopy ranoside. USE: Flavor-maintaining agent. PREPARATION: A methyl-D-glycoside o...  
JPH01128992A
NEW MATERIAL:A compound of formula I (wavy lines represent axial or equatorial bonds). EXAMPLE: Methyl-4,6-0-[3-(1-methylcyclohexen-4-yl)butylidene]-α,D-gl uco- pyranoside. USE: Flavor-maintaining agent. PREPARATION: Methyl-D-glucoside ...  
JPS6479192A
NEW MATERIAL:A derivative expressed by formula I [R1 is H, alkyl or alkoxycarbonyl; R2 and R3 are H or together link to form a cyclic group and represent a group expressed by formula II (A is H, alkyl, or aryl); R4 is acyl- substituted o...  
JPS6442436A
PURPOSE: To obtain the subject composition containing an amiprolose in an amount effective as a medicine as an active component together with a physiologically permissible carrier, capable of administering in a form of tablets and useful...  
JPS646191B2
The invention relates to alpha -hydroxyalkyl-3,4,5-trihydroxypiperidines defined by Formula (I), infra, and pharmaceutical compositions and medicaments containing said compounds. Also included in the invention are methods for the use of ...  
JPS6419086A
PURPOSE: To obtain a saccharide derivative suitable as a raw material for statine homologue useful as an intermediate for enzyme inhibitor industrially and advantageously, by reacting a glucose derivative with a specific Grignard reagent...  
JPS63250394A
NEW MATERIAL:A compound expressed by formula I (R1 and R2 are H or together represent isopropylidene; R3 and R4 are H or together represent isopropylidene; R5 is H or alkyl; R6 is H or acyl). EXAMPLE: 3-Deoxy-3-( 3-tetradecanoyloxytetrad...  
JPS63250341A
Deuterated aromatic aldehydes of the formula: where Ar is substituted phenyl, and derivatives thereof represented by the formula: where Ar is substituted or unsubstituted phenyl, and X1 and X2 are substituted hetero atoms or together wit...  
JPS63246361A
NEW MATERIAL:A compound expressed by formula 6 [Q1 and Q2 are lower alkyl or both Q1 and Q2 together represent lower alkylene; R1 is OH-protecting group; X is O or N-Y (Y is OH which may be protected), etc.]. EXAMPLE: ( 1S )-( 1(OH),2,4/...  
JPS63196523A
PURPOSE: To obtain the titled preventive and remedy containing a resin glycoside. CONSTITUTION: A preventive and remedy for protozoological disease containing one or more of the whole plant containing a resin glycoside [e.g. pharbitin, j...  
JPS63165394A
Sucrose 6-acylates, key intermediates in the preparation of sucralose, can be prepared by subjecting a sucrose alkyl 4,6-orthoacylate to mild aqueous acidic hydrolysis to provide a mixture of sucrose 4- and 6-acylates and then treating t...  
JPS6327358B2  
JPS6320438B2  
JPS6312877B2  
JPS6312875B2  
JPS6312876B2  
JPS6312075B2  
JPS6312074B2  
JPS6310685B2  
JPS6345292A
PURPOSE: To obtain the titled compound useful as an intermediate for ascorbic acid, etc., on an industrial scale at a low cost, by reacting L-sorbose under the addition of acetone having low water-content in the presence of a ketalizatio...  
JPS63500452A
Sugar-containing dipeptides of a new type, their manufacture and use in various pharmaceutical, biological and medical applications, in particular for prophylactic purposes against infections, combating infections diseases of various ori...  
JPS62283992A
NEW MATERIAL:A compound shown by formula I (R is α-D-glucopyranoxy- ortho-acetic acid residue shown by formula II, α-D-galactopyranoxy-ortho-acetic acid residue shown by formula III or β-D-mannopyranoxy-ortho-acetic acid residue shown...  
JPS62265296A
NEW MATERIAL:A compound expressed by formula I (wavy line represents axial or equatorial bond; n is 1 or 2). EXAMPLE: Methyl-4,6-O-β-phenylethylidene-α-D-glucopyranoside. USE: A fixative for perfumes. PREPARATION: A methyl-α-D-glycosi...  
JPS62258321A
PURPOSE: To obtain an agent for suppressing hepatic disorder, by using cysteine- glucuronic acid or cysteine glucuronolactone or their salt as essential component. CONSTITUTION: The objective agent for suppressing hepatic disorder contai...  
JPS6251960B2
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...  
JPS62220196A
NEW MATERIAL:UCN-01 of formula having the following physical and chemical properties. Molecular formula, C28H26N4O4; melting point, 245W250°C (decomposition); [α]D22=+132.0° (C=0.3, methanol); solubility, soluble in methanol, chlorofo...  
JPS62207288A
NEW MATERIAL:The compound of formula (R1 is H or isobutanoyl; R2 is H, isobutanoyl, 2-methyl-3-hydroxybutanoyl or α-methylbutanoyl). USE: An evacuant. PREPARATION: Root of Ipomoea orizabensis Ledanois is crushed, extracted with an organ...  
JPS62207287A
NEW MATERIAL:The compound of formula (R1 and R2 are H or α-methyl- butanoyl; R3 is H, α-methylbutanoyl or isobutanyol). USE: An evacuant. PREPARATION: Seed of Ipomoea muricata (L) Jacq. is crushed, extracted with a lower alcohol prefer...  
JPS62207290A
NEW MATERIAL:The compound of formula I (R1 is benzyl; R2 is benzyl or allyl; R3 is trichoro-t-butoxycarbonyl or trichloroethoxy-carbonyl). EXAMPLE: Allyl-2-( 2',2',2'-trichloro-t-butyxycarbonyl )amino-2-deoxy-3-( 2',2',2'- trichloro-t-bu...  
JPS6231703B2
The invention includes certain 3,4,5-trihydroxypiperidine compounds, methods for their preparation, compositions containing said 3,4,5-trihydroxypiperidine compounds and methods for the use of said compounds and compositions. The subject...  
JPS62111935A
PURPOSE: In an oxidation reaction using an alkali hypohalite as an oxidizing agent in an aqueous solvent, to control a reaction temperature readily and to reduce consumption of the oxidizing agent, by progressing the reaction while disti...  
JPS6264802A
The invention concerns the esters of hyaluronic acid in which all or only a portion of the carboxylic groups of the acid are esterified, and the salts of the partial esters with metals or with pharmacologically acceptable organic bases. ...  
JPS6256423A
PURPOSE: To provide the titled ameliorating agent containing benzaldehyde and/or 4,6-O-benzylidene-D-glucose as an active component. CONSTITUTION: The objective remedy and ameliorating agent for cachexia can be produced by using benzalde...  
JPS6226258A  
JPS61293982A
NEW MATERIAL:A comppund expressed by formula I (R is NH2, OH or SCH3; R1 is NH2 or OH; R2 is OH or H). EXAMPLE: 2-Methylthio-4-oxo-3, 4, 5, 6-tetrahydro-6-(L-erythro-1, 2, 3- trihydroxypropyl)-pteridine. USE: Useful for diseases, e.g. pe...  
JPS61249980A
PURPOSE: To obtain the titled compound of high purity having a steric configuration, by reacting a dialkoxycyclohexanone with D-arabinose, reacting the resultant novel intermediate with a specific compound, and reducing the resultant nov...  
JPS6145639B2
Bicyclomycin derivatives having the general formula: wherein RI is +TR RII and RIII are hydrogens or aliphatic, RIV is hydrogen, aliphatic, acyl, or aliphatic heterocyclic, and Z is  
JPS61204190A
NEW MATERIAL:A compound of formula I [when R1 is formula II, R2 is alkoxycarbonyl, carboxyl (salt); when R1 is alkoxycarbonyl, carboxyl (salt), R2 is formula II; R3 is H, CH3CO]. EXAMPLE: 1-O-[Methyl(5-N-acetyl-3, 5-dideoxy-4,7,8,9-tetra...  
JPS6139957B2  
JPS61197582A
NEW MATERIAL:The compound of formula I (R1 is H, acyl, or benzyloxycarbonyl; R2 is H, OH, methanesulfonyloxy, etc.; R3 is H, OH, trifluoromethanesulfonyloxy, etc.). EXAMPLE: 2-Acetamido-1,5-anhydro-2-deoxy-4,6-isopropylidene-D-glucito l....  

Matches 651 - 700 out of 863