摘要:
[Problem] To efficiently (without carrying out column purification) provide a high-purity maleate having excellent storage stability, solubility, crystallinity and ease of handling according to the present invention.[Solution] This method for producing the maleate represented by formula (1) includes obtaining the compound represented by formula (2) by reacting the compound represented by formula (3) with the compound represented by formula (4) in the presence of a salt, precipitating crystals of the compound represented by formula (2) by mixing the obtained compound represented by formula (2) with acetone and water, and obtaining the maleate represented by formula (1) by adding maleic acid to an acetone solution of the compound represented by formula (2), prepared by dissolving the crystals of the obtained compound represented by formula (2) in acetone.
摘要:
An inexpensive and industrially advantageous method for producing optically active syn-3-(N-substituted-aminomethyl)-4-fluoropyrrolidine which may be an intermediate for producing pharmaceuticals is provided. The present invention relates a method for producing a syn-1-protected-4-fluoro-3-(N-substituted-N-nitrobenzenesulfonyl)pyrrolidine derivative or it's enantiomer, or their salts comprising the process of fluorinating a compound represented by the general formula (6) (in the formula, PG1 represents a protecting group for an amino group, R1 represents a C1 to C6 alkyl group which may be substituted or a C3 to C8 cycloalkyl group which may be substituted, and Ns represents a 2-nitrobenzenesulfonyl group or a 4-nitrobenzenesulfonyl group) or it's enantiomer using a nucleophilic fluorinating agent and an organic base having an amidine or guanidine structure.
摘要:
Provided herein are spirocyclic aminoquinolones of formula I and compositions containing the compounds. The compounds and compositions provided herein are useful in the prevention, amelioration or treatment of GSK-3 inhibitors mediated diseases. In Formula (I): X1 is O or NR8; A is bond or substituted or unsubstituted C1-C2 alkylene, wherein the substituents when present are selected from one to four Q2 groups; where Q2 is alkyl or haloalkyl; p is 0 or 1; and q is an integer of 0 to 2.
摘要:
The present invention provides a double-stranded RNA which inhibits replication of influenza B viruses by RNA interference, in which the double-stranded RNA comprises an RNA having 19 to 25 nucleotides homologous with a part of an mRNA transcribed from a genomic RNA of the influenza B viruses and an antisense RNA thereof.
摘要:
The present invention provides a double-stranded RNA which inhibits replication of influenza B viruses by RNA interference, in which the double-stranded RNA comprises an RNA having 19 to 25 nucleotides homologous with a part of an mRNA transcribed from a genomic RNA of the influenza B viruses and an antisense RNA thereof.
摘要:
A water floatable tablet, which is either: (a) a tablet comprising at least one filler selected from the group consisting of a sugar alcohol, a sugar, a cellulose derivative, and a starch and a component which exhibits a hydrophobic effect, wherein the tablet has a hollow cavity in a center section; or (b) a tablet obtained by a process including: (1) forming a crust comprising at least one filler selected from the group consisting of a sugar alcohol, a sugar, a cellulose derivative, and a starch on an outer surface of a core comprising a sublimation solid, to obtain a dry coated tablet having the core positioned at a center section; (2) heating the dry coated tablet, to obtain a tablet having a hollow cavity; and (3) contacting the tablet having a hollow cavity with a component which exhibits a hydrophobic effect.
摘要:
The present invention relates to cyclic amino benzoic acid derivatives which are effective in therapy of lipid metabolism abnormality, diabetes and the like as a human peroxisome proliferators-activated receptor (PPAR) agonist, in particular, as an agonist against human PPARα isoform, and addition salts thereof, and pharmaceutical compositions containing these compounds.A cyclic amino benzoic acid derivative represented by the general formula (1) [wherein a ring Ar represents an aryl group which may have substituent, or the like; Y represents a C1-C4 alkylene, C2-C4 alkenylene, C2-C4 alkynylene, or the like; Z represents an oxygen atom, sulfur atom or —(CH2)n— (n represents 0, 1 or 2); X represents a hydrogen atom, halogen atom, lower alkyl group which may be substituted with a halogen atom, or the like; R represents a hydrogen atom or lower alkyl group, and —COOR substitutes for an ortho position or metha position of binding position of ring W] or a pharmaceutically acceptable salt thereof.
摘要:
Provided herein are benzoxazinone compounds of formula I and compositions containing the compounds. The compounds and compositions are useful in the methods of inhibiting the action of serine hydrolase, including neutrophil elastase. In certain embodiments, the compounds and compositions are useful in the prevention, amelioration or treatment of serine hydrolase-mediated diseases.
摘要:
The industrial production of 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide, a urinary incontinence remedy, necessitates elimination of problems concerning the use of a synthetic adsorbent, e.g., HP-20, the efficiency of operation with the same, purification efficiency, etc. An acid salt, e.g., hydrochloride or phosphate, of 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide or a hydrate of any of these salts is used as an intermediate. This intermediate is neutralized and then purified. Thus, high-purity 4-(2-methyl-1-imidazolyl)-2,2-diphenylbutanamide is easily obtained in satisfactory yield. The industrial-scale production process has been thus established.
摘要:
Herein provided is an agent for the prevention of cerebral aneurysm, for the control of the formation thereof or for the treatment thereof, which comprises Ibudilast as an effective component.The agent for the prevention of cerebral aneurysm, for the control of the formation thereof or for the treatment thereof comprises Ibudilast represented by the following structural formula (1):