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: 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: The present invention provides a novel hydroxyquinoxaline carboxamide derivative that is useful for preventing and/or treating blood coagulation disorders. A compound represented by formula (i), or a pharmacologically acceptable salt thereof: wherein, each of R1 and R2 independently represents a group such as a hydrogen atom or a halogen atom; R3 represents a group such as a hydrogen atom; each of R4 and R5 independently represents a group such as a hydrogen atom, a halogen atom or a C1-4 alkyl group; each of R6 and R7 independently represents a hydrogen atom or a C1-4 alkyl group; X represents a group such as a C3-10 cycloalkyl group, C6-10 aryl group or a 5- to 10-membered heterocyclic group, which may be substituted with substituent(s) selected from substituent group ?; Y represents a group such as —CO—, —O— or —NRa—, and Ra represents a group such as a hydrogen atom or a C1-4 alkyl group.

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: 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: A compound represented by the following formula (I): wherein R1 represents hydrogen, aryl which may have a substituent, a saturated or unsaturated 5- to 7-membered heterocyclic group which may have a substituent, etc.; R2 represents hydrogen, aryl which may have a substituent, a saturated or unsaturated 5- to 7-membered heterocyclic group which may have a substituent, etc.; R3 represents hydrogen, etc.; Ar represents a divalent group derived from aromatic hydrocarbon, etc.; X represents a single bond, linear or branched alkylene having from 1 to 3 carbon atoms which may have a substituent, etc.; and G represents halogen, a saturated or unsaturated 5- or 6-membered cyclic hydrocarbon group which may have a substituent, a saturated or unsaturated 5- to 7-membered heterocyclic group which may have a substituent, etc.

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.