摘要:
Disclosed is an analgesic agent for a non-inflammatory pain disease, which comprises a sialic acid or a pharmaceutically acceptable salt thereof as an active ingredient. The sialic acid which is an active ingredient for the agent has an analgesic effect on a disease model animal of neurogenic pain which is a non-inflammatory pain. Therefore, the analgesic agent is useful as a pharmaceutical agent for the treatment of a non-inflammatory pain disease such as a neurogenic pain disease, e.g. trigeminal neuralgia, postherpetic neuralgia, entrapment neuropathy, complex regional pain syndrome, diabetic neuropathy, traumatic neuropathy, phantom limb pain, central pain after spinal cord injury or stroke, and neuropathy caused by pharmacotherapy or radiation therapy, or the like.
摘要:
A method is disclosed for producing di- and more highly oxidized carboxylic acids from a compound selected from a first group consisting of carbohydrates, carbohydrate derivatives and carbohydrate derivatives having more than one primary alcohol group, comprising oxidizing, in an aqueous solution in a concentration between 0.1% and 60%, the compound selected from said first group and a compound selected from a second group consisting of monooxidized carbohydrates, monooxidized carbohydrate derivatives and monooxidized carbohydrate derivatives having more than one primary alcohol group, with one of oxygen and an oxygen-containing gas, on one of a noble metal catalyst and a mixed metal catalyst; electrodialyzing the oxidized compounds in at least one electrodialysis stage; and removing said di- and more highly oxidized carboxylic acids in said at least one electrodialysis stage.
摘要:
Oligosaccharide compounds that are substrates and inhibitors of glycosyltransferase and glycosidase enzymes and compositions containing such compounds are disclosed. A method of glycosylation is also disclosed. An E. coli transformed with phagemid CMPSIL-1, which phagemid comprises a gene for a modified CMP-sialic acid synthetase enzyme, which transformed E. coli has the ATCC accession No. 68531 is also provided.
摘要:
An amorphous sialic acid powder is disclosed. It is prepared by rapidly freezing an aqueous solution of sialic acids and freeze-drying the frozen product. It has a melting point of 131.degree.-136.degree. C. (decomposed) and exhibits no peaks inherent to crystals in differential scanning thermal analysis (at 165.degree.-200.degree. C.) and X-ray diffractiometric pattern (in the range of 5.degree..ltoreq.2.theta..ltoreq.40.degree.). The amorphous sialic acid powder is highly reactive and can be used as a raw material for drugs and the like.
摘要:
Pharmaceutical salts of 4'-(9-acridinylamino)--methanesulfon-m-anisidide, methods for their preparation and use of said salts in the form of pharmaceutical compositions as antineoplastic agents.
摘要:
A novel process is disclosed for production of ketals of 2-ketogulonic acid or of its esters, which comprises reacting 2-ketogulonic acid or its esters with a ketone in the presence of a ketal formation catalyst. The process is advantageous from the industrial point of view to give ketals of 2-ketogulonic acid or of its esters.
摘要:
Racemic modifications of optically active amines are treated with (-)-di-O-isopropylidene-2-keto-L-gulonic acid to form diastereomeric salts. The so-formed diastereomeric salts are separated and chemically decomposed to give the desired enantiomers of the amine. The resolving agent, (-)-di-0isopropylidene-2-keto-L-gulonic acid, is recovered by precipitation from aqueous solution.