Abstract: An objective of the present invention is to provide compounds that can effectively suppress the concentration of phosphorus in serum to effectively prevent or treat diseases induced by an increase in concentration of phosphate in serum. The compounds according to the present invention are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof: wherein A represents an optionally substituted five- to nine-membered unsaturated carbocyclic moiety or a five- to nine-membered unsaturated heterocyclic moiety, and represents a single bond or a double bond, R5 represents optionally substituted aryl or the like, Z represents —N?CHR6R7 or the like, R6 and R7 represent H, optionally substituted alkyl, optionally substituted aryl or the like, R101 and R102 together form ?O, and R103 and R104 represent H, or R101 and R104 together from a bond, and R102 and R103 together form a bond.

Abstract: An objective of the present invention is to provide compounds that can effectively suppress the concentration of phosphorus in serum to effectively prevent or treat diseases induced by an increase in concentration of phosphate in serum. The compounds according to the present invention are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof: wherein A represents an optionally substituted five- to nine-membered unsaturated carbocyclic moiety or a five- to nine-membered unsaturated heterocyclic moiety, and ?represents a single bond or a double bond, R5 represents optionally substituted aryl or the like, Z represents —N?CHR6R7 or the like, R6 and R7 represent H, optionally substituted alkyl, optionally substituted aryl or the like, R101 and R102 together form ?O, and R103 and R104 represent H, or R101 and R104 together from a bond, and R102 and R103 together form a bond.

Abstract: A novel calcium receptor active compound having the formula is provided: Ar1—[CR1R2]p—X—[CR3R4]q—[CR5R6]—NR7—[CR8R9]—Ar2 wherein: Ar1 is selected from the group consisting of aryl, heteroaryl, bis(arylmethyl)amino, bis(heteroarylmethyl)amino and arylmethyl(heteroarylmethyl)amino; X is selected from the group consisting of oxygen, sulfur, sulfinyl, sulfonyl, carbonyl and amino; R1, R2, R3, R4, R5, R6, R7, R8 and R9 are, for example, hydrogen or alkyl; Ar2 is selected from the group consisting of aryl and heteroaryl; p is an integer of from 0 to 6, inclusive; and, q is an integer of from 0 to 14, inclusive.

Abstract: A novel calcium receptor active compound having the formula is provided: Ar1—[CR1R2]p—X—[CR3R4]q—[CR5R6]—NR7—[CR8R9]—Ar2 wherein: Ar1 is selected from the group consisting of aryl, heteroaryl, bis(arylmethyl)amino, bis(heteroarylmethyl)amino and arylmethyl(heteroarylmethyl)amino; X is selected from the group consisting of oxygen, sulfur, sulfinyl, sulfonyl, carbonyl and amino; R1, R2, R3, R4, R5, R6, R7, R8 and R9 are, for example, hydrogen or alkyl; Ar2 is selected from the group consisting of aryl and heteroaryl; p is an integer of from 0 to 6, inclusive; and, q is an integer of from 0 to 14, inclusive.

Abstract: An object of the present invention is to provide compounds having potent antitumor activity. The compounds according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts or solvates thereof: wherein X and Z represent CH or N; Y represents O or S; R1, R2, and R3 represent H, alkoxy or the like; R4 represents H; R5, R6, R7, and R8 represent H, halogen, alkoxy or the like; R9 and R10 represent H, alkyl or the like; and R11 represents optionally substituted azolyl.

Abstract: An objective of the present invention is to provide compounds that can effectively suppress the concentration of phosphorus in serum to effectively prevent or treat diseases induced by an increase in concentration of phosphate in serum. The compounds according to the present invention are compounds represented by formula (I) and pharmaceutically acceptable salts and solvates thereof: wherein A represents an optionally substituted five- to nine-membered unsaturated carbocyclic moiety or a five- to nine-membered unsaturated heterocyclic moiety, and represents a single bond or a double bond, R5 represents optionally substituted aryl or the like, Z represents —N?CHR6R7 or the like, R6 and R7 represent H, optionally substituted alkyl, optionally substituted aryl or the like, R101 and R102 together form ?O, and R103 and R104 represent H, or R101 and R104 together from a bond, and R102 and R103 together form a bond.

Abstract: The present invention relates to novel isoxazole and thiazole compounds having an excellent lysophosphatidic acid (LPA) receptor antagonistic activity represented by general formula [1] or salts thereof: wherein R1 and R2 represents an optionally substituted alkyl group or the like; R3 represents a hydrogen atom or the like; R4 represent a group selected from the group consisting of (I) optionally substituted phenyl, aryl, or heterocycle, (II) substituted or nonsubstituted alkyl, and (III) substituted or nonsubstituted alkenyl, alternatively, R3 and R4 may form a ring structure together with a carbon atom to which they bind; and X represents an oxygen atom or a sulfur atom, provided that, when R3 is a hydrogen atom, R4 represents a group other than methyl, and the use thereof as a medicine.

Abstract: A novel calcium receptor active compound having the formula is provided: Ar1—[CR1R2]p—X—[CR3R4]q—[CR5R6]—NR7—[CR8R9]—Ar2 wherein: Ar1 is selected from the group consisting of aryl, heteroaryl, bis(arylmethyl)amino, bis(heteroarylmethyl)amino and arylmethyl(heteroarylmethyl)amino; X is selected from the group consisting of oxygen, sulfur, sulfinyl, sulfonyl, carbonyl and amino; R1, R2, R3, R4, R5, R6, R7, R8 and R9 are, for example, hydrogen or alkyl; Ar2 is selected from the group consisting of aryl and heteroaryl; p is an integer of from 0 to 6, inclusive; and, q is an integer of from 0 to 14, inclusive.

Abstract: An object of the present invention is to provide compounds having potent antitumor activity. The compounds according to the present invention are compounds represented by formula (I) or pharmaceutically acceptable salts or solvates thereof: wherein X and Z represent CH or N; Y represents O or S; R1, R2, and R3 represent H, alkoxy or the like; R4 represents H; R5, R6, R7, and R8 represent H, halogen, alkoxy or the like; R9 and R10 represent H, alkyl or the like; and R11 represents optionally substituted azolyl.

Abstract: An object of the present invention is to provide compounds having potent antitumor activity.

Abstract: A novel calcium receptor active compound having the formula is provided: Ar1—[CR1R2]p—X—[CR3R4]q—[CR5R6]—NR7—[CR8R9]—Ar2 wherein: Ar1 is selected from the group consisting of aryl, heteroaryl, bis(arylmethyl)amino, bis(heteroarylmethyl)amino and arylmethyl(heteroarylmethyl)amino; X is selected from the group consisting of oxygen, sulfur, sulfinyl, sulfonyl, carbonyl and amino; R1, R2, R3, R4, R5, R6, R7, R8 and R9 are, for example, hydrogen or alkyl; Ar2 is selected from the group consisting of aryl and heteroaryl; p is an integer of from 0 to 6, inclusive; and, q is an integer of from 0 to 14, inclusive.

Abstract: A novel calcium receptor active compound having the formula is provided:

Abstract: A novel calcium receptor active compound having the formula is provided:

Abstract: The present invention relates to novel isoxazole and thiazole compounds having an excellent lysophosphatidic acid (LPA) receptor antagonistic activity represented by general formula [1] or salts thereof: 1

Abstract: An object of the present invention is to provide compounds having potent antitumor activity.

Abstract: A novel calcium receptor active compound having the formula is provided:

Abstract: A novel calcium receptor active compound having the formula is provided: Ar1—[CR1R2]P—X—[CR3R4]q—[CR5R6]—NR7—[CR8R9]—Ar2 wherein: Ar1 is selected from the group consisting of aryl, heteroaryl, bis(arylmethyl)amino, bis(heteroarylmethyl)amino and arylmethyl(heteroarylmethyl)amino; X is selected from the group consisting of oxygen, sulfur, sulfinyl, sulfonyl, carbonyl and amino; R1, R2, R3, R4, R5, R6, R7, R8 and R9 are, for example, hydrogen or alkyl; Ar2 is selected from the group consisting of aryl and heteroaryl; p is an integer of from 0 to 6, inclusive; and, q is an integer of from 0 to 14, inclusive.