摘要:
A method for producing a biodegradable polyoxyalkylene derivative, includes: reacting a biodegradable polyoxyalkylene compound represented by the formula (1) as defined herein with a compound represented by one of the formulae (I) to (IV) as defined herein in a presence of an alkaline solid salt, the biodegradable polyoxyalkylene derivative being represented by the formula (2) as defined herein.
摘要:
A polyoxyalkylene chain-containing lipid derivative, which is represented by the following formula (1): wherein L, Y, W, X1, X2, X3, OA, Z, m1, m2, m3, n1, n2 and n3 are as defined in the specification.
摘要:
Novel xanthine compounds represented by the following formula: ##STR1## wherein each of R.sup.1, R.sup.2 and R.sup.3 independently represents hydrogen or lower alkyl;each of X.sup.1 and X.sup.2 independently represents oxygen or sulfur; and Q represents: ##STR2## The compounds are useful as a diuretic, a renal-protecting agent and bronchodilator.
摘要:
A phospholipid derivative, utilizable for modification of liposomes and the like, which is a copolymer containing, as essential component units, a component unit A represented by the formula (1), a component unit B represented by the formula (2A) and/or the formula (2B), and a component unit C represented by the formula (3) [R1 and R2 represent hydrogen atom or methyl group, provided that R1 and R2 do not simultaneously represent methyl group; R3 represents a divalent hydrocarbon group having 1 to 3 carbon atoms; AO represents an oxyalkylene group having 2 to 4 carbon atoms; m represents an average molar number of the added oxyalkylene groups and is a number in the range represented as 4≦m≦100; R4 represents hydrogen atom, a hydrocarbon group or acyl group having 1 to 20 carbon atoms; R5CO and R6CO represent an acyl group having 8 to 24 carbon atoms; R7 represents a divalent hydrocarbon group having 2 to 4 carbon atoms; and X and Y represent hydrogen atom, an alkali metal atom, ammonium or an organic ammonium] wherein a molar ratio of the component unit A relative to a total of the component unit B and the component unit C is from 7/3 to 3/7, and the component unit C is contained at a ratio of from 1 to 4 moles per 1 mole of the copolymer.
摘要:
A cell in which a reaction product of a substance to be modified and an amphipathic compound is non-covalently bound to a cell membrane, wherein said compound has the following features: (1) having one or more aliphatic hydrocarbon groups at one end; (2) having one or more portions containing a hydrophilic group in a molecule; and (3) having one or more reactive functional groups which are capable of covalently binding with the substance to be modified at an end different from the end in the above (1).
摘要:
To provide a counter weight capable of forming an attaching part to a vehicle frame with high precision, capable of improving attaching precision to this vehicle frame, and further, capable of decreasing a manufacture cost thereof. The counter weight includes a base made of cast iron having an attaching part, whereby the counter weight is attached to a vehicle frame; and a weight part made of a slab material having a block body made of a slab material; wherein the weight part made of the slab material is attached on the above-described base made of cast iron. The outer surface of the above-described weight part made of the slab material is coated with the cover. In addition, the connection plate is attached to the above-described base made of cast iron, the lower end edge of the above-described cover is joined to the base made of cast iron through the above-described connection plate, and the upper end edge of the above-described cover is joined to the upper part of the above-described weight part made of the slab material. Since the base made of cast iron is attached to the vehicle frame, it is possible to form the attaching part to the vehicle frame at a low cost, simply, and with high precession.
摘要:
A bacterium belonging to Bacillus subtilis and having aflatoxin decomposing ability, as well as a fungal growth inhibitor, fermentation promoter and livestock fattening agent, all containing the bacterium as an active or effective ingredient. The Bacillus subtilis is strain FERM BP-3418. Also disclosed are methods for inhibiting or controlling a pathogenic fungus on a plant or animal.
摘要:
New amino-alcohol derivatives and processes for production thereof are disclosed. These compounds exhibit .alpha. and .beta.-adrenergic receptor blocking activity or they act to increase the flow of blood of certain organs.
摘要:
The present invention relates to a novel compound represented by the general formula: ##STR1## wherein Ar represents a naphthyl, phenyl or substituted phenyl group, Q represents ##STR2## wherein R.sub.1 represents a hydrogen atom, or an alkyl, alkanoyl or alkoxycarbonyl group, R represents a hydrogen atom or an alkyl group, and Z represents a substituted benzimidazolinyl group; the broken line in piperidine ring means that 3,4-positions in the piperidine ring are saturated or form a double bond. Said compound and the pharmaceutically acceptable acid addition salts thereof have a hypotensive action and therefore are useful as medicine.
摘要:
A new piperidine derivative represented by the formula: ##STR1## wherein X is oxygen, sulfur, carbonyl, hydroxymethylene or methylene; R.sub.1 is straight-chain alkylene having 1-4 carbon atoms with or without lower alkyl substituent(s); (A).sub.m and R.sub.2 are usually used substituents; and Y is a monovalent group or a divalent group and is one of the following three groups: ##STR2## wherein when p is 0, B is --N.dbd.N--, ##STR3## and when p is 1, B is ##STR4## wherein (R.sub.3).sub.n is a usually used substituent, has hypotensive activity.