Abstract: An objective of the present invention is to provide an amorphous cefditoren pivoxil composition possessing excellent stability and dissolvability and to provide a production process of the amorphous composition. The amorphous cefditoren pivoxil composition according to the present invention comprises cefditoren pivoxil and a pharmaceutically acceptable organic polymeric compound, wherein the composition is obtainable by grinding a crystalline cefditoren pivoxil in the presence of a pharmaceutically acceptable organic polymeric compound to convert the crystalline cefditoren pivoxil to an amorphous substance.
Abstract: The present invention relates to compounds represented by formula (1) and a process for producing the same. The use of these compounds can realize the production of carbapenem derivatives having potent antimicrobial activity and a wide antimicrobial spectrum in a safe and cost-effective manner.
Abstract: Caprazene and caprazol could be synthesized by hydrolysis of a caprazamycin. There could be synthesized a caprazene-1??-amide derivative of the formula (II) and a caprazene-1??-ester derivative of the formula (III) from caprazene. Further, there could be synthesized a caprazol-1??-amide derivative of the formula (V) and a caprazol-1??-amide-3??-ester derivative and a caprazol-3??-ester derivative, etc. from caprazol. Furthermore, an imidazolidinone derivative could be synthesized from the ring-opened product of the 1,4-diazepinone ring of caprazol. The novel caprazene derivative, novel caprazol derivative and novel imidazolidinone derivative now synthesized exhibit excellent antibacterial activities against a variety of bacteria, including acid-fast bacteria.
Abstract: This invention relates to crystals of compounds of formula (I), wherein TBS represents t-butyldimethylsilyl, and Ph represents phenyl, or its salt or solvate. Compounds of formula (I) are synthesis intermediates of 2-substituted-1?-methyl carbapenem compounds useful as antimicrobial agents. The crystals of the present invention have excellent handleability and can realize the production of carbapenem compounds having excellent antimicrobial activity in a simpler manner with improved yield and purity.
Abstract: The present invention relates to a composition for organ preservation, comprising an inulin type fructan as an active ingredient. The composition for organ preservation can suppress the hypofunction of an organ and damage to a histological structure and can improve the state of preservation of the organ in the course of organ transplantation and the like.
Abstract: This invention relates to a protein that is a Zygomycetes-derived endoglucanase lacking the cellulose-binding domain and exhibits endoglucanase activity, and a method for using the same. This invention can enhance effects of an endoglucanase enzyme on fabric treatment such as reduction of fuzzing, improvement in feel and appearance, color clarification, partial color change, and softening of cellulose-containing fabrics and on performance improvement in the deinking of waste paper and drainage of paper pulp.
Abstract: The present invention relates to a compound of formula (1), wherein R1, R2, R3, n, and X are as defined in the specification, and a process for producing the same. This compound is useful as an intermediate for the synthesis of compounds useful as pharmaceuticals or agricultural chemicals.
Abstract: An objective of the present invention is to provide a method for producing substance PF1022 derivatives, in particular PF1022-220 and PF1022-260, by a direct fermentation method, and a transformant to be used for this method. According to the present invention, there is provided a transformant producing substance FF1022 derivatives, which can be obtained by introducing a genes involved in a biosynthetic pathway from chorismic acid to p-aminophenylpyruvic acid, including a papA gene encoding 4-amino-4-deoxychorismate synthase. which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 2; a papB gene encoding 4-amino-4-deoxyclaismate mutase, which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 4; and a papC gene encoding 4-amino-4-deoxyprepbenate dehydrogenase, which gene comprises the DNA sequence encoding the amino acid sequence of SEQ ID NO: 6, into a phenylalanine auxotrophic host induced from an organism that produces a substance PF1022.
Abstract: An object of the present invention is to provide a ?-fructofuranosidase variant whose reaction specificity is improved to be suitable for the production of fructooligosaccharides. According to the present invention, there is provided a ?-fructofuranosidase variant consisting of a mutated amino acid sequence of SEQ ID NO: 2 or a mutated homologue thereof, which has mutations at specific amino acid residues.
Abstract: Disclosed is a method for efficiently and highly selectively producing L-2-amino-4-(hydroxymethylphosphinyl)-butanoic acid, which is useful as a herbicide, through a catalytic asymmetric synthesis reaction. Specifically disclosed is a method for producing L-2-amino-4-(hydroxymethylphosphinyl)-butanoic acid which is characterized in that a dehydroamino acid is subjected to an asymmetric hydrogenation by using a rhodium catalyst represented by the formula (2) below and having an optically active cyclic phosphine ligand, and then the resulting product is subjected to hydrolysis: [Rh(R4)(L)]X ??(2) [where R4 represents 1,5-cyclooctadien or norbornadien; L represents a substance represented by the following formula (6): (wherein R5 and R8 respectively represent a C1-4 alkyl group; R6 and R7 respectively represent hydrogen atom or hydroxyl group; and Y represents a group selected from groups represented by the following formula (7): (where Me represents methyl group)).].
Abstract: An object of the present invention is to provide an adhesion-preventing material which is capable of effectively preventing the surfaces of organs from adhesion, and which can be absorbed in the body with high safety and produced with ease and has high practical utility, as well as to a process for preventing adhesion by using the adhesion-preventing material. The present invention provides (1) an adhesion-preventing material comprising a crosslinked water absorbent poly-y-glutamic acid as an effective ingredient; (2) the adhesion-preventing material described above, wherein the crosslinked water absorbent poly-y-glutamic acid is in the form of powder having a water absorption coefficient in the range of 800-2000; (3) a process for preventing organ from adhesion, comprising a step of bringing the adhesion-preventing material described above into contact with the surface of a local organ; and (4) the process for preventing adhesion described above, wherein the surface of the local organ is in wet state.
Abstract: Disclosed is a novel cellulase having an amino acid sequence in which the 162nd and/or 166th amino acid residues in the amino acid sequence of cellulase NCE5 are substituted. Further, a polynucleotide encoding the novel cellulase, an expression vector containing the polynucleotide, a host cell transformed with the expression vector, and a cellulase preparation and a washing composition containing the cellulase are disclosed. The cellulase of the present invention is resistant to surfactants, and maintains a high activity even under alkaline conditions.
Abstract: Compounds represented by the general formula (1) or pharmaceutically acceptable salts thereof, effective in the prevention and/or treatment of infections with microbes: (1) (a) wherein R1 is hydrogen or straight-chain C1-6 alkylcarbonyl; R2 is hydrogen or C1-6 alkylcarbonyl; R3 is hydrogen, C1-6 alkyl, C1-6 alkylcarbonyl, C1-6 alkenyl, C2-6 alkenylcarbonyl, C2-6 alkynyl, or an Ar—B— group (wherein Ar is aryl or a heterocyclic group; and B is C1-6 alkyl, C1-6 alkylcarbonyl, C2-6 alkenyl, C2-6 alkenylcarbonyl, or C2-6 alkynyl); R5, R6, R7 and R8 are each hydrogen, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, or an Ar—B?— group (wherein B? is C1-6 alkyl, C2-6 alkenyl, or C2-6 alkynyl); X is oxygen or —NR4— (wherein R4 is hydrogen, C1-6 alkyl or C1-6 alkyl which may be substituted with Ar); and R4? is hydrogen or a group represented by the general formula (a) (wherein R3? and R4? are each hydrogen or straight-chain or branched C1-6 alkylcarbonyl)
Abstract: The present invention provides a novel bacterial cell composition which comprises cells of Butyrivibrio fibrisolvens having the ability to produce butyric acid, a cultured material thereof or an extract thereof, and a method for inhibiting carcinogenesis, a method for immunostimulating, a method for preventing or treating a pathogen, a method for preventing or treating an inflammatory bowel disease and a method for preventing or treating an allergic disease, which use the same.
Abstract: A novel organic molecular catalysts represented by the following formula (1) or (2): and a method for carrying out asymmetric reactions/asymmetric synthesis using these organic molecular catalysts.
Abstract: The present invention relates to compounds represented by formula (1) and a process for producing the same. The use of these compounds can realize the production of carbapenem derivatives having potent antimicrobial activity and a wide antimicrobial spectrum in a safe and cost-effective manner.
Abstract: The present invention provides a protein having saponin-decomposing activity, more specifically a protein which can decompose a glycoside having soyasapogenol B as an aglycone to produce soyasapogenol B, a polynucleotide encoding such a protein, and a method of producing soyasapogenol B on a large scale using the same. A protein according to the present invention are concerned with (a), (b) or (c), namely (a) a protein comprising an amino acid sequence selected from the group consisting of the amino acid sequences shown in SEQ ID NOs: 2, 4, and 6; (b) a protein that has at least 50% homology to the protein comprising the amino acid sequence of the sequence described in (a) and having saponin-decomposing activity; or (c) a protein comprising a modified amino acid sequence of the sequence described in (a) that has one or more amino acid residues deleted, substituted, inserted, or added and having saponin-decomposing activity.
Abstract: There is provided a plant disease resistance-inducing composition comprising a filamentous fungus-derived glycosphingolipid. There is also provided a method for controlling a plant disease, comprising the step of treating a target plant with a composition comprising a filamentous fungus-derived glycosphingolipid.
Abstract: A deinking method using a cellulase which enables the load upon the environment to be reduced; and an evaluation method whereby a cellulase effective in deinking and the effective addition level of the cellulase can be appropriately determined. By proposing pulp-swelling activity (PSA) that elevates the water-retention value of pulp after pulp is reacted with cellulase, it becomes possible to select an enzyme that is effective in cellulase-deinking treatment without lowering the paper strength and to determine the effective enzyme dosage. Namely, a method of deinking waste paper is provided wherein the selection of an effective cellulase and the optimization of the enzyme dosage with the use of PSA as an indication make it possible to minimize the cellulase addition level and lessen the amount of the deinking agent.