Abstract: It is intended to provide a novel bisphosphonic acid compound or a salt thereof which shows a remarkable inhibitory effect on ectopic calcification, and a pharmaceutical composition comprising the same. The present invention provides a bisphosphonic acid compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof: wherein represents a single bond or a double bond; A represents a saturated cyclic hydrocarbon or a saturated heterocyclic ring comprising a sulfur atom or an oxygen atom; and R1 and R2 each independently represent an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryloxy group, a haloalkoxy group, a haloalkyl group, a halogen atom or a hydrogen atom.

Abstract: It is intended to provide a novel bisphosphonic acid compound or a salt thereof which shows a remarkable inhibitory effect on ectopic calcification, and a pharmaceutical composition comprising the same. The present invention provides a bisphosphonic acid compound represented by the following formula (1) or a pharmaceutically acceptable salt thereof: wherein represents a single bond or a double bond; A represents a saturated cyclic hydrocarbon or a saturated heterocyclic ring comprising a sulfur atom or an oxygen atom; and R1 and R2 each independently represent an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, an aryloxy group, a haloalkoxy group, a haloalkyl group, a halogen atom or a hydrogen atom.

Abstract: A compound of the formula (I): or a pharmaceutically acceptable salt thereof.

Abstract: Disclosed is a compound which is useful as an 11?-hydroxysteroid dehydrogenase type 1 inhibitor. A compound represented by the formula: its pharmaceutically acceptable salt, or a solvate thereof, wherein R1 is optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocycle or optionally substituted heterocyclealkyl, X is —O—, —NR3—, —NR3C(?O)— or —NR3S(?O)2—, R2 is optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl or optionally substituted heteroarylalkyl, R3 is hydrogen or optionally substituted alkyl.

Abstract: Disclosed is a compound which is useful as an 11?-hydroxysteroid dehydrogenase type 1 inhibitor. A compound represented by the formula: its pharmaceutically acceptable salt, or a solvate thereof, wherein R1 is optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocycle or optionally substituted heterocyclealkyl, X is —O—, —NR3—, —NR3C(?O)— or —NR3S(?O)2—, R2 is optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl or optionally substituted heteroarylalkyl, R3 is hydrogen or optionally substituted alkyl.

Abstract: Disclosed is a compound which is useful as an 11?-hydroxysteroid dehydrogenase type 1 inhibitor.

Abstract: Disclosed is a compound which is useful as an 11?-hydroxysteroid dehydrogenase type 1 inhibitor. A compound represented by the formula: its pharmaceutically acceptable salt, or a solvate thereof, wherein R1 is optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted heterocycle or optionally substituted heterocyclealkyl, X is —O—, —NR3—, —NR3C(?O)— or —NR3S(?O)2—, R2 is optionally substituted aryl, optionally substituted arylalkyl, optionally substituted heteroaryl or optionally substituted heteroarylalkyl, R3 is hydrogen or optionally substituted alkyl.

Abstract: A compound of the formula (I): a pharmaceutically acceptable salt or solvate thereof, wherein Ring Q is optionally substituted monocyclic aryl, optionally substituted monocyclic heteroaryl, optionally substituted fused aryl or optionally substituted fused heteroaryl, Y1 is a bond or —NR6— or the like, Ring A is optionally substituted nonaromatic heterocyclediyl, a group of the formula: -Y2Z1- is a group of the formula: R7 are each independently hydrogen, optionally substituted lower alkyl or the like, R8 and R9 are each independently hydrogen or optionally substituted lower alkyl, n is an integer between 1 and 3, Z1 is a bond, —O—, —S— or —NR9—, Ring B is optionally substituted aromatic carbocyclediyl or optionally substituted aromatic heterocyclediyl, Y3 is a bond, optionally substituted lower alkylene optionally intervened by —O—, optionally substituted lower alkenylene or the like, and Z2 is COOR3 or the like.