Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

Abstract: The present invention provides compounds represented by formulas (I) to (XVII) or pharmaceutically acceptable salts thereof:

Abstract: The disclosure provides pyrazolo[1,5-a]pyrimidine compounds, and pharmaceutically acceptable salts thereof, having protease-activated receptor 2 (PAR2) inhibitory action, pharmaceutical compositions containing the same, and methods of treatment using the same.

Abstract: A compound represented by the formula (I) or a salt thereof: wherein a ring Z is a 5 to 6-membered heteroaromatic ring having one or two heteroatoms in the ring; X1 is a hydrogen atom, a hydroxy group, a hydroxy C1-6 alkyl group, —B(OH)2, a boronate ester group, a cyclic boronate ester group, a boranyl group, a cyclic boranyl group, —BF3Mn1, —Sn(R12)(R13)(R14), a leaving group, a carboxy group, a formyl group, or —NR16R17; and X2 is a hydrogen atom or —CO2R18.

Abstract: The compounds represented by formulas (I) to (XVIII) or pharmaceutically acceptable salts thereof.

Abstract: Compounds represented by formulae (I) to (XXII) or pharmaceutically acceptable salts thereof:

Abstract: Compounds represented by formulae (I) to (XXII) or pharmaceutically acceptable salts thereof:

Abstract: A compound represented by the formula (I) or a salt thereof: wherein a ring Z is a 5 to 6-membered heteroaromatic ring having one or two heteroatoms in the ring; X1 is a hydrogen atom, a hydroxy group, a hydroxy C1-6 alkyl group, —B(OH)2, a boronate ester group, a cyclic boronate ester group, a boranyl group, a cyclic boranyl group, —BF3Mn1, —Sn(R12)(R13)(R14), a leaving group, a carboxy group, a formyl group, or —NR16R17; and X2 is a hydrogen atom or —CO2R18.

Abstract: By oral administration of a compound represented by the following Formula (I): the blood level of Compound (IV): which has an excellent inhibitory action against blood coagulation factor VIIa and the anticoagulant action, reaches a level sufficient for expression of its pharmacological actions. Therefore, the compound of the present invention is useful as a therapeutic and/or prophylactic agent for diseases caused by thrombus formation.

Abstract: By oral administration of a compound represented by the following Formula (I): the blood level of Compound (IV): which has an excellent inhibitory action against blood coagulation factor VIIa and the anticoagulant action, reaches a level sufficient for expression of its pharmacological actions. Therefore, the compound of the present invention is useful as a therapeutic and/or prophylactic agent for diseases caused by thrombus formation.

Abstract: A compound represented by the following general formula (1) or salts thereof or hydrates of the foregoing: wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc.; R2 represents optionally substituted phenyl, etc.; R3 represents optionally substituted C6-10 aryl, etc.; and Z1 and Z2 each independently represent hydrogen.

Abstract: A compound represented by the following general formula (1) or salts thereof or hydrates of the foregoing: wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc.; R2 represents optionally substituted phenyl, etc.; R3 represents optionally substituted C6-10 aryl, etc.; and Z1 and Z2 each independently represent hydrogen.

Abstract: A Compound represented by the following general formula (1): wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc.; R2 represents optionally substituted phenyl, etc.; R3 represents optionally substituted C6-10 aryl, etc.; and Z1 and Z2 each independently represent hydrogen or salts thereof or hydrates of the foregoing.

Abstract: A Compound represented by the following general formula (1), salts thereof or hydrates of the foregoing is a novel compound useful for treatment and/or prevention of diseases associated with thrombus formation, and which is safer with suitable physicochemical stability. [wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc.; R2 represents optionally substituted phenyl, etc.; R3 represents optionally substituted C6-10 aryl, etc.

Abstract: A compound represented by the following general formula (1) or a salt thereof or a hydrate of the foregoing is safe while exhibiting suitable physicochemical stability, and is useful as therapeutic or prophylactic agents for diseases associated with thrombus formation. wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc., R2 represents optionally substituted phenyl, etc., R3 represents optionally substituted C6-10 aryl, etc., Z1, Z2 and Z3 each independently represent hydrogen, etc., Z4 represents hydrogen, etc. and X represents a single bond or —CO—, etc.

Abstract: A Compound represented by the following general formula (1): wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc.; R2 represents optionally substituted phenyl, etc.; R3 represents optionally substituted C6-10 aryl, etc.; and Z1 and Z2 each independently represent hydrogen or salts thereof or hydrates of the foregoing.

Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action and cell infiltration inhibitory action. wherein R10 represents 5- to 10-membered cycloalkyl etc. optionally substituted with hydroxyl etc., R30, R31 and R32 may be the same or different and each represents hydrogen etc., R40 represents C1-10 alkyl etc. optionally substituted with hydroxyl etc., n represents an integer of 0, 1 or 2, X1 represents CH or nitrogen, and R20, R21, R22 and R23 may be the same or different and each represents hydrogen etc.

Abstract: In one aspect, the present invention provides compounds having formula (1) or (100), a salt thereof or a hydrate of the foregoing, which compounds exhibit excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and are useful as therapeutic or prophylactic agents for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome; rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.

Abstract: A compound represented by the following general formula (1) or (100), a salt thereof or a hydrate of the foregoing has excellent cell adhesion inhibitory action or cell infiltration inhibitory action, and is useful as a therapeutic or prophylactic agent for various inflammatory diseases and autoimmune diseases associated with adhesion and infiltration of leukocytes, such as inflammatory bowel disease (particularly ulcerative colitis or Crohn's disease), irritable bowel syndrome, rheumatoid arthritis, psoriasis, multiple sclerosis, asthma and atopic dermatitis. wherein R10 represents optionally substituted cycloalkyl, etc., R20-23 represent hydrogen, alkyl, alkoxy, etc., R30-32 represent hydrogen, alkyl, oxo, etc., and R40 represents optionally substituted alkyl, etc.