Abstract: The present invention provides an aptamer that binds to IL-17 to inhibit binding of IL-17 and IL-17 receptor; a complex containing the aptamer and a functional substance (e.g., affinity substance, labeling substance, enzyme, drug delivery medium, drug and the like); a medicament containing the aptamer, or a complex containing the aptamer and a functional substance, a diagnosing drug and labeling agent and the like.

Abstract: Disclosed are: a novel purine derivative, a composition thereof, a method for treating tumor using the purine derivative, and an antitumor agent using the purine derivative. Specifically disclosed is a compound represented by formula (I), or a pharmaceutically acceptable salt, solvate or hydrate thereof, or a prodrug thereof.

Abstract: Disclosed is an antidepressant, neuroprotectant, amyloid ? deposition inhibitor, or age retardant composition containing a heterocyclic compound having the general formula (I):

Abstract: Disclosed is an antidepressant, neuroprotectant, amyloid ? deposition inhibitor, or age retardant composition containing a heterocyclic compound having the general formula (I):

Abstract: [Problems] The object is to improve the absorbability of a heterocyclic compound including s-triazine and a pyrimidine derivative in vitro. [Means for Solving Problems] Disclosed is, for example, an amorphous body of a heterocyclic compound as represented by the general formula (I) [wherein each of R's and others is as defined in the description] including s-triazine and a pyrimidine derivative, or a hydrate, a solvate or a pharmaceutically acceptable salt of the heterocyclic compound. Also disclosed is a process for producing the amorphous body. Further disclosed are: a solid dispersion comprising the amorphous body; and a medicinal preparation comprising the solid dispersion.

Abstract: Heterocyclic compounds represented by the formula I and anti-malignant-tumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; Y represents C1-C6 alkyl; R1 represents morpholino (which may be substituted with one to four C1-C6 alkyl); and R2 and R3 each represent hydrogen atom or C1-C6 alkyl.

Abstract: A novel method for immunosuppressive in a mammal suffering from an immune disease, including administering to the mammal a therapeutically effective amount of a heterocyclic compound represented by the general formula (I) (wherein X or other variables are as defined in the specification) or a pharmaceutically acceptable salt thereof is disclosed. A novel heterocyclic compound represented by the general formula (II) (wherein X or other variables are as defined in the specification) or a pharmaceutically acceptable salt thereof is also disclosed.

Abstract: [Problems] The object is to improve the absorbability of a heterocyclic compound including s-triazine and a pyrimidine derivative in vitro. [Means for Solving Problems] Disclosed is, for example, an amorphous body of a heterocyclic compound as represented by the general formula (I) [wherein each of R's and others is as defined in the description] including s-triazine and a pyrimidine derivative, or a hydrate, a solvate or a pharmaceutically acceptable salt of the heterocyclic compound. Also disclosed is a process for producing the amorphous body. Further disclosed are: a solid dispersion comprising the amorphous body; and a medicinal preparation comprising the solid dispersion.

Abstract: Heterocyclic compound represented by the formula I wherein represents or the like; R1 represents hydrogen atom, C1-C6 alkyl or benzyloxy; R2 represents methyl or nil; R3 represents hydrogen atom, C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or —CH2R5 [wherein R5 represents phenyl (which may be substituted with C1-C6 alkyl, halogen atom or cyano)] or thienyl; R4 represents C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or —CH2R6 [wherein R6 represents phenyl (which may be substituted with C1-C6alkyl, halogen atom or cyano), naphtyl or thienyl]; or R3 is coupled with R4.

Abstract: Disclosed is an method of treating cognitive impairment, including administering to a subject in need thereof a combination of a therapeutic agent for neurodegenerative disease and a therapeutically effective amount of a heterocyclic compound represented by the following general formula (I):

Abstract: Heterocyclic compounds represented by the formula I and anti-malignant-tumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; Y represents C1-C6 alkyl; R1 represents morpholino (which may be substituted with one to four C1-C6 alkyl); and R2 and R3 each represent hydrogen atom or C1-C6 alkyl.

Abstract: Disclosed is an antidepressant, neuroprotectant, amyloid ? deposition inhibitor, or age retardant composition containing a heterocyclic compound having the general formula (I):

Abstract: Disclosed is an antidepressant, neuroprotectant, amyloid ? deposition inhibitor, or age retardant composition containing a heterocyclic compound having the general formula (I):

Abstract: The present invention relates to heterocyclic compounds represented by the formula I or pharmaceutically acceptable salts thereof and antitumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; R1 represents CHnF3-n (wherein n is 1 or 2), hydroxy C1-C6 alkyl, NHR6 [wherein R6 represents hydrogen atom or COR (wherein R represents hydrogen atom, C1-C6 alkyl or C1-C6 alkoxy)]; R2 represents morpholino (which may be substituted with one to four C1-C6 alkyl), thiomorpholino, piperidino, pyrrolidinyl (which may be substituted with hydroxy C1-C6 alkyl), oxazolidinyl (which may be substituted with one or two C1-C6 alkyl) or tetrahydro-1,4-thiazin-1-oxo-4-yl; R3 and R4 each represent hydrogen atom or C1-C6 alkyl; and R5 represents hydrogen atom, amino or hydroxyl.

Abstract: The present application describes a method of treating prostate cancer, melanoma or hepatic cancer in a subject in need thereof, the method comprising administering to said subject a therapeutically effective amount of the heterocyclic compound represented by Formula I or its pharmaceutically acceptable salt:

Abstract: The present invention relates to heterocyclic compounds represented by the formula I wherein X represents nitrogen atom or CH; R1 represents halogen atom or hydroxyl; R2 represents hydrogen atom, hydroxyl or amino; R3 represents morpholino (which may be substituted with one or two C1–C6 alkyl), pyrrolidinyl (which may be substituted with hydroxy C1–C6 alkyl) or NR6R7 [R6 represents C1–C6 alkyl and R7 represents piperidinyl (which may be substituted with C1–C6 alkyl)]; R4 and R5 each represents hydrogen atom or C1–C6 alkyl, with the proviso that R2 is hydrogen atom and R3 is pyrrolidinyl (which may be substituted with hydroxy C1–C6 alkyl) when R1 is hydroxyl

Abstract: Heterocyclic compound represented by the formula I wherein represents or the like; R1 represents hydrogen atom, C1–C6 alkyl or benzyloxy; R2 represents methyl or nil; R3 represents hydrogen atom, C1–C6 alkyl, C2–C6 alkenyl, C3–C8 cycloalkyl or —CH2R5 [wherein R5 represents phenyl (which may be substituted with C1–C6 alkyl, halogen atom or cyano)] or thienyl; R4 represents C1–C6 alkyl, C2–C6 alkenyl, C3–C8 cycloalkyl or —CH2R6 [wherein R6 represents phenyl (which may be substituted with C1–C6 alkyl, halogen atom or cyano), naphtyl or thienyl]; or R3 is coupled with R4.

Abstract: The present invention relates to heterocyclic compounds represented by the formula I or pharmaceutically acceptable salts thereof and antitumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; R1 represents CHnF3-n (wherein n is 1 or 2), hydroxy C1-C6 alkyl, NHR6 [wherein R6 represents hydrogen atom or COR (wherein R represents hydrogen atom, C1-C6 alkyl or C1-C6 alkoxy)]; R2 represents morpholino (which may be substituted with one to four C1-C6 alkyl), thiomorpholino, piperidino, pyrrolidinyl (which may be substituted with hydroxy C1-C6 alkyl), oxazolidinyl (which may be substituted with one or two C1-C6 alkyl) or tetrahydro-1,4-thiazin-1-oxo-4-yl; R3 and R4 each represent hydrogen atom or C1-C6 alkyl; and R5 represents hydrogen atom, amino or hydroxyl.

Abstract: Heterocyclic compound represented by the formula I wherein represents or the like; R1 represents hydrogen atom, C1-C6 alkyl or benzyloxy; R2 represents methyl or nil; R3 represents hydrogen atom, C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or —CH2R5 [wherein R5 represents phenyl (which may be substituted with C1-C6 alkyl, halogen atom or cyano)] or thienyl; R4 represents C1-C6 alkyl, C2-C6 alkenyl, C3-C8 cycloalkyl or —CH2R6 [wherein R6 represents phenyl (which may be substituted with C1-C6alkyl, halogen atom or cyano), naphtyl or thienyl]; or R3 is coupled with R4.

Abstract: The present invention relates to heterocyclic compounds represented by the formula I or pharmaceutically acceptable salts thereof and antitumor agents containing the heterocyclic compounds as effective components: wherein X represents nitrogen atom or CH; R1 represents CHnF3-n (wherein n is 1 or 2), hydroxy C1–C6 alkyl, NHR6 [wherein R6 represents hydrogen atom or COR (wherein R represents hydrogen atom, C1–C6 alkyl or C1–C6 alkoxy)]; R2 represents morpholino (which may be substituted with one to four C1–C6 alkyl), thiomorpholino, piperidino, pyrrolidinyl (which may be substituted with hydroxy C1–C6 alkyl), oxazolidinyl (which may be substituted with one or two C1–C6 alkyl) or tetrahydro-1,4-thiazin-1-oxo-4-yl; R3 and R4 each represent hydrogen atom or C1–C6 alkyl; and R5 represents hydrogen atom, amino or hydroxyl.