Abstract: The present invention relates to indole carboxamide compounds of formula (I) or a salt thereof wherein R2, R3, R4, R6, R7, R8, R51 and R52 have the meanings as indicated herein, and are MT1 and/or MT2 receptor agonists useful for treating and/or preventing urological diseases.

Abstract: The present invention relates to indole carboxamide compounds of formula (I) or a salt thereof wherein R2, R3, R4, R6, R7, R8, R51 and R52 have the meanings as indicated herein, and are MT1 and/or MT2 receptor agonists useful for treating and/or preventing urological diseases.

Abstract: A compound represented by the general formula (I) or a pharmacologically acceptable salt thereof has an excellent LCAT-activating effect and is useful as an active ingredient in a therapeutic or prophylactic agent for arteriosclerosis, arteriosclerotic heart disease, coronary heart disease (including heart failure, myocardial infarction, angina pectoris, cardiac ischemia, cardiovascular disturbance, and restenosis caused by angiogenesis), cerebrovascular disease (including stroke and cerebral infarction), peripheral vascular disease (including diabetic vascular complications), dyslipidemia, hypo-HDL-cholesterolemia, or renal disease, particularly, an anti-arteriosclerotic agent, wherein R is an optionally substituted aryl group or an optionally substituted heteroaryl group.

Abstract: [Problem] To provided a compound which is useful as an MT1 and/or MT2 receptor agonist. [Means for Solution] The present inventors have conducted studies on MT1 and/or MT2 receptor agonists, and have found that an indole carboxamide compound has an MT1 and/or MT2 receptor agonistic action, thereby completing the present invention. The indole carboxamide compound of the present invention has the MT1 and/or MT2 receptor agonistic action as well as a low CNS penetration, and therefore, it can be used as an agent for preventing and/or treating urological diseases; in one embodiment, lower urinary tract symptoms; in another embodiment, urine storage symptom, in another embodiment, urinary incontinence; in a still another embodiment, stress urinary incontinence; and the like.

Abstract: A compound represented by the general formula (I) or a pharmacologically acceptable salt thereof has an excellent LCAT-activating effect and is useful as an active ingredient in a therapeutic or prophylactic agent for arteriosclerosis, arteriosclerotic heart disease, coronary heart disease (including heart failure, myocardial infarction, angina pectoris, cardiac ischemia, cardiovascular disturbance, and restenosis caused by angiogenesis), cerebrovascular disease (including stroke and cerebral infarction), peripheral vascular disease (including diabetic vascular complications), dyslipidemia, hypo-HDL-cholesterolemia, or renal disease, particularly, an anti-arteriosclerotic agent, wherein R is an optionally substituted aryl group or an optionally substituted heteroaryl group.

Abstract: The present invention provides a compound which enhances the production of erythropoietin. The present invention provides a compound represented by formula (1): [wherein, R1: formula (1A): [wherein, R4 and R5: H, halogen, or alkyl; R6: H, halogen, alkyl, or the like; R7: substitutable hydroxyalkyl, substitutable hydroxyhalo alkyl, substitutable alkoxyalkyl, or the like; substituent group ?: oxo, hydroxy, amino, or the like; ring Q1: a monocyclic heterocyclic group; ring Q2: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; ring Q3: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; X: a single bond, methylene, ethylene, or the like]; R2: alkyl, or methylsulfanyl; and R3: H, or methyl], or the like.

Abstract: Substituted imidazo[1,5-a]quinoxalin-4-ones are useful as phosphodiesterase 9 inhibitors.

Abstract: Substituted imidazo[1,5-a]quinoxalin-4(5H)-ones are useful as PDE9 inhibitors.

Abstract: [Object] A compound which is useful as an EP1 receptor antagonist is provided. [Means for Solution] The present inventors investigated EP1 receptor antagonists, and confirmed that a compound having a sulfonamide structure, in which the nitrogen atom of the sulfonamide structure is substituted with 2-fluoropropyl group, 3-fluoro-2-methylpropyl group or the like, has a potent EP1 receptor antagonistic action, thereby completing the present invention. The sulfonamide compound of the present invention has a potent EP1 receptor antagonistic action and can be used as an agent for preventing and/or treating a lower urinary tract symptom or the like.

Abstract: The present invention provides a compound which enhances the production of erythropoietin. The present invention provides a compound represented by formula (1): [wherein, R1: formula (1A): [wherein, R4 and R5: H, halogen, or alkyl; R6: H, halogen, alkyl, or the like; R7: substitutable hydroxyalkyl, substitutable hydroxyhalo alkyl, substitutable alkoxyalkyl, or the like; substituent group ?: oxo, hydroxy, amino, or the like; ring Q1: a monocyclic heterocyclic group; ring Q2: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; ring Q3: a monocyclic hydrocarbon ring group, or a monocyclic heterocyclic group; X: a single bond, methylene, ethylene, or the like]; R2: alkyl, or methylsulfanyl; and R3: H, or methyl], or the like.

Abstract: The present invention relates to a novel compound having an effect of inhibiting production/secretion of ?-amyloid protein. The present invention provides a compound represented by the general formula (1): or a salt thereof, or a solvate of the compound or the salt; and a medicament comprising thereof.

Abstract: [Problem] Provided is a compound which has a PDE9-inhibiting action and is useful as an active ingredient for an agent for treating and/or preventing storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like. [Means for Solution] The present inventors have investigated a compound which has a PDE9-inhibiting action and is useful as an active ingredient for an agent for treating and/or preventing storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like, and thus, have found that an imidazoquinoxaline compound or a triazoloquinoxaline compound has a PDE9-inhibiting action, thereby completing the present invention. The imidazoquinoxaline compound or the triazoloquinoxaline compound of the present invention has a PDE9-inhibiting action and can be used as an agent for preventing and/or treating storage dysfunction, voiding dysfunction, and bladder/urethral diseases, and the like.

Abstract: [Object] A compound which is useful as an EP1 receptor antagonist is provided. [Means for Solution] The present inventors investigated EP1 receptor antagonists, and confirmed that a compound having a sulfonamide structure, in which the nitrogen atom of the sulfonamide structure is substituted with 2-fluoropropyl group, 3-fluoro-2-methylpropyl group or the like, has a potent EP1 receptor antagonistic action, thereby completing the present invention. The sulfonamide compound of the present invention has a potent EP1 receptor antagonistic action and can be used as an agent for preventing and/or treating a lower urinary tract symptom or the like.

Abstract: A compound that can be used as an agent for treating a disease associated with an EP1 receptor, in particular a lower urinary tract symptom. It was confirmed that a sulfonamide compound having an amide structure and characterized by a chemical structure in which a carbon atom in the amide bonds to the N atom in sulfonamide through lower alkylene, or a salt thereof, has a potent EP1 receptor antagonistic activity, accomplishing the present invention. Since the sulfonamide compound of the present invention or a pharmaceutically acceptable salt thereof has a potent EP1 receptor antagonistic activity, it is useful as an agent for treating a disease associated with an EP1 receptor, in particular, a lower urinary tract symptom.

Abstract: The present invention provides compounds which promote erythropoietin production.

Abstract: Provided is a compound capable of inhibiting production or secretion of ? amyloid protein. A compound represented by the following formula (1): (wherein, R1 represents a heterocyclic group which may have a substituent, R2 represents a cyclic hydrocarbon group which may have a substituent or a heterocyclic group which may have a substituent, R3 represents a cyclic hydrocarbon group which may have a substituent or a heterocyclic group which may have a substituent, R4 represents a hydrogen atom or a C1-6 alkyl group, and X represents —S—, —SO— or —SO2—); an N-oxide or S-oxide thereof; a salt thereof; or a solvate thereof; and a medicament containing any of them.

Abstract: A compound having activity to inhibit production and/or secretion of ?-amyloid protein, and is useful for prevention and/or treatment of various diseases associated with abnormal production and/or secretion of ?-amyloid protein, the compound represented by the general formula (I): [wherein, R1 represents a C1-C6 alkyl group which may have 1 to 6 halogen atoms as substituent groups, a C2-C6 alkenyl group which may have 1 to 6 halogen atoms as substituent groups, or a C3-C7 cycloalkyl group which may have 1 to 6 halogen atoms as substituent groups; R2 represents a 6-membered nitrogen-containing monocyclic aromatic heterocyclic group having 1 to 3 substituent groups, or a 9- or 10-membered nitrogen-containing bicyclic heterocyclic group having 1 to 4 substituent groups; Z1, Z2 and Z3 each independently represent a hydrogen atom, a halogen atom or a cyano group; and n represents 0, 1 or 2], salts thereof, or solvates thereof.

Abstract: [Object] A compound that can be used as an agent for treating a disease associated with an EP1 receptor, in particular, a lower urinary tract symptom. [Means for Solution] It was confirmed that a sulfonamide compound having an amide structure and characterized by a chemical structure in which a carbon atom in the amide bonds to the N atom in sulfonamide through lower alkylene, or a salt thereof, has a potent EP1 receptor antagonistic activity, accomplishing the present invention. Since the sulfonamide compound of the present invention or a pharmaceutically acceptable salt thereof has a potent EP1 receptor antagonistic activity, it is useful as an agent for treating a disease associated with an EP1 receptor, in particular, a lower urinary tract symptom.

Abstract: The present invention relates to a novel compound having an effect of inhibiting production/secretion of ?-amyloid protein. The present invention provides a compound represented by the general formula (1): or a salt thereof, or a solvate of the compound or the salt; and a medicament comprising thereof.

Abstract: This invention relates to an anti-dementia agent which uses a BEC 1 potassium channel inhibitor as the active ingredient. It was proved that the BEC 1 potassium channel inhibitor has an action to improve learning disorder and is useful as a preventive or therapeutic agent for diseases, preferably dementia, in which the BEC 1 potassium channel is considered to be concerned. Illustratively, it was confirmed by an in vivo test that the BEC 1 potassium channel inhibitor has an action to improve learning disorder. Also, it was found that a compound having 2,4,6-triamino-1,3,5-triazine has a BEC 1 potassium channel inhibitory action.