Abstract: According to the present invention, there are provided a novel partial ester of a nitrogenous carboxylic acid ester with cellulose, the partial ester being useful as an antibacterial agent, a flame retardant, etc., and a simple and convenient process for preparing the same. Fibers made of said partial ester have washing-resistant antibacterial property and flame retardancy. There can be prepared the partial ester of a nitrogenous carboxylic acid ester with cellulose by contacting a nitrogenous carboxylic acid ester with cellulose and heat-treating the mixture.

Abstract: The present invention provides a metal surface protective film-forming agent that contains an ?-amino acid (e.g., leucine, phenylalanine and valine) and a metal polishing solution using the same. The present invention also provides a method of polishing a surface of a base material for the manufacture of a substrate for semiconductor circuits, a method of forming a metal surface protective film, the use of the particular amino acid to the metal surface protective film forming agent, a substrate for semiconductor circuit that uses the same, a semiconductor circuit including these and a method of manufacturing the same.

Abstract: Herein are disclosed a tillering promoter for a plant comprising an amino acid, especially proline, or inosine in addition thereto, as effective ingredient(s), and a method for tillering promotion for a plant wherein the tillering promoter is especially applied onto the leaf surfaces, in accordance with which are provided a tillering promoter for a plant which enables the reduction of the amount of fertilizer hitherto used in a large amount and the maintenance of a satisfactory green state by promoting the tillering of a plant, especially lawn grass without requiring the application of pesticides and plant hormones, also exhibits growth promotion and coloring promotion of leaves, is not a chemical fertilizer, and does not adversely affect the environment and men and beasts, and a method for applying the same.

Abstract: Wrapping material and underlays in which a partial ester of at least one basic amino acid with cellulose or a salt thereof is used as a constituting component have excellent antibacterial properties and a high safety. Specific examples of the partial ester of at least one basic amino acid with cellulose include a partial ester of lysine with cellulose, a partial ester of arginine with cellulose, a partial ester of ornithine with cellulose, and a partial ester of histidine with cellulose.

Abstract: The present invention relates to an animal breeding material or article having excellent antibacterial properties, deodorization characteristics and safety. More particularly, the present invention relates to an animal breeding material or article composed of a basic amino acid cellulose partial ester (i.e., partial ester of cellulose with a basic amino acid) or a salt thereof as the effective constituting component.

Abstract: In this application is disclosed a growth promoter for gramineous plants such as lawns and the like, and the like, which comprises, as the active ingredient, serine alone or both serine and inosine. The growth promoter is not a chemical fertilizer and does not adversely affect the environment and humans and animals.

Abstract: The present invention discloses an inosine. L-arginine salt, compositions containing the salt, and methods of using the salt and said compositions for cell activation and/or plant growth promotion. The salt can be stored and transported as a solid and dissolves quickly and efficiently when needed.

Abstract: According to the present invention, a cellulose fiber or a fiber product made of said cellulose fiber is contacted with a basic amino acid ester and thereafter heat treated, thereby there may be provided an antibacterial product which does not lose its antibacterial property even by being washed several times.

Abstract: According to the present invention, there are provided a novel partial ester of a nitrogenous carboxylic acid ester with cellulose, the partial ester being useful as an antibacterial agent, a flame retardant, etc., and a simple and convenient process for preparing the same. Fibers made of said partial ester have washing-resistant antibacterial property and flame retardancy.

Abstract: Herein is disclosed a withering-preventing and quick-acting nutrition supplementing agent for a gramineous or the like plant such as a lawn grass or the like which agent comprises, as the effective ingredient (s), proline alone or both proline and inosine concurrently, according to which a withering preventing and quick-acting nutrition supplementing agent which is not a chemical fertilizer and does not adversely affect environment and humans and animals, as well as a method for applying the same, can be provided.

Abstract: Herein are disclosed a tillering promoter for a plant comprising an amino acid, especially proline, or inosine in addition thereto, as effective ingredient(s), and a method for tillering promotion for a plant wherein the tillering promoter is especially applied onto the leaf surfaces, in accordance with which are provided a tillering promoter for a plant which enables the reduction of the amount of fertilizer hitherto used in a large amount and the maintenance of a satisfactory green state by promoting the tillering of a plant, especially lawn grass without requiring the application of pesticides and plant hormones, also exhibits growth promotion and coloring promotion of leaves, is not a chemical fertilizer, and does not adversely affect the environment and men and beasts, and a method for applying the same.

Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.

Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.

Abstract: Provided is an industrially useful process for producing an optically active 2-hydroxy-4-arylbutyric acid or its ester. An optically active acyloxysuccinic anhydride is reacted with an aromatic compound in the presence of a Lewis acid to produce an optically active 2-acyloxy-4-oxo-4-arylbutyric acid. The 2-acyloxy-4-oxo-4-arylbutyric acid is converted to an optically active 2-acyloxy-4-arylbutyric acid through catalytic reduction. The 2-acyloxy-4-arylbutyric acid is hydrolyzed in the presence of an acid or an alkali to produce an optically active 2-hydroxy-4-arylbutyric acid. The 2-hydroxy-4-arylbutyric acid is reacted with an alcohol in the presence of an acid to produce an optically active 2-hydroxy-4-arylbutyric acid ester.

Abstract: 5-Cyclohexylmethylhydantoin derivatives may be conveniently prepared by reducing, in the presence of a metal catalyst, a 5-(3-cyclohexene-1-yl)melthylenehydantoin derivative which is obtained by the condensation of a hydantoin derivative and a 3-cyclohexene-1-carbaldehyde derivative in the presence of a monoalkanolamine.

Abstract: N-t-butyloxycarbonyl-3-cyclohexyl-L-alanine methyl ester, previously known only as an oil, is provided in crystalline form. By addition of an organic solvent, such as methanol and/or n-hexane, to the ester in the form of an oil and cooling, crystals may be obtained. Alternatively, the ester in oily form may be seeded with a crystal produced previously. The crystalline material is of higher purity than the previously known oils, and is more useful than the oils as an intermediate in the pharmaceutical industry.

Abstract: N-t-butyloxycarbonyl-3-cyclohexyl-L-alanine methyl ester, previously known only as an oil, is provided in crystalline form. By addition of an organic solvent, such as methanol and/or n-hexane, to the ester in the form of an oil and cooling, crystals may be obtained. Alternatively, the ester in oily form may be seeded with a crystal produced previously. The crystalline material is of higher purity than the previously known oils, and is more useful than the oils as an intermediate in the pharmaceutical industry.

Abstract: Improved methods for synthesizing glutamine-containing peptides, involving an active ester method between a protected, C-terminal activated amino acid or a protected, C-terminal activated peptide, and unprotected glutamine in the presence of a weak base, are disclosed.

Abstract: There are disclosed dipeptide derivatives represented by the general formula: ##STR1## wherein R.sup.1 is a radical selected from the group consisting of alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.2 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.3 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, R.sup.4 is a radical selected from the group consisting of hydrogen atoms and alkyl, aralkyl and aryl groups optionally containing one or more substituent groups, and R.sup.

Abstract: An amino acid derivative having anti-hypertensive activity and having the formula: ##STR1## wherein one of X or Y represents an acyl group RCO--, and wherein R is an amino acid residue selected from the group consisting of glycyl, alanyl, valyl, leucyl, isoleucyl, phenylalanyl, methionyl, prolyl, ceryl, threonyl, arginyl, lysyl, histidyl, aspartyl, asparaginyl, tyrosyl, cysteinyl, tryptophyl, and hydroxyprolyl, and the other group is H; R.sup.1 and R.sup.2 are the same or different from each other, and each represents H, lower alkyl having 1 to 6 carbon atoms, aryl having 6 to 12 carbon atoms, any of which are unsubstituted or substituted by one or more lower alkyl, lower alkoxy, hydroxy, amino, carboxy or mercapto groups; Z represents --OH, RO--, RS--, RNH--, NONH--, RONH--, RSO.sub.