Abstract: This invention relates to novel N-hydroxyacrylamide compounds of formula (I) and pharmaceutically acceptable salts thereof. More particularly, it relates to novel N-hydroxyacrylamide compounds and pharmaceutically acceptable salts thereof which act as a HDAC inhibitor, to a pharmaceutical composition comprising the same and to a method of using the same therapeutically in the treatment and/or prevention of HDAC-related disease.

Abstract: A compound having the following formula (I): wherein —R1 is hydrogen, optionally substituted lower alkyl, cyclo(lower)alkyl, cyclo(higher)alkyl, optionally substituted aryl, optionally substituted heterocyclyl, or aryl-fused cyclo(lower)alkyl, R2 is hydrogen or halogen, Z is CH or N, X is formula (II) R3 is lower alkyl which may be substituted with —OH or optionally substituted aryl, or lower alkanoyl, R4 is hydrogen or lower alkyl, Y is optionally substituted lower alkylene, or a salt thereof. The compound is useful as a histone deacetylase inhibitor.

Abstract: Compounds having the formula (I): wherein R1 is hydrogen, lower alkyl, lower alkenyl, lower or higher alkynyl, cyclo(lower)alkyl, cyclo(higher)alkyl, cyclo(lower)alkyl(lower)alkyl, cyclo(higher)alkyl(lower)alkyl, cyclo(lower)alkenyl(lower)alkyl, aryl-fused cyclo(lower)alkyl, lower alkoxy, acyl, aryl, ar(lower)alkoxy, ar(lower)alkyl, heteroar(lower)alkyl, amino, heteroaryl, heterocyclyl or heterocyclyl(lower)alkyl, which may be substituted with one or more suitable substituent(s), R2 is hydrogen or lower alkyl, X is pyrrolidinylene or piperidinylene, Y is pyridylene, which may be substituted with one or more suitable substituent(s), Z is lower alkenylene, which may be substituted with lower alkyl or halogen, and salts thereof are useful as a histone deacetylase inhibitors.

Abstract: Compounds having the formula (I): wherein R1 is hydrogen, lower alkyl, lower alkenyl, lower or higher alkynyl, cyclo(lower)alkyl, cyclo(higher)alkyl, cyclo(lower)alkyl(lower)alkyl, cyclo(higher)alkyl(lower)alkyl, cyclo(lower)alkenyl(lower)alkyl, aryl-fused cyclo(lower)alkyl, lower alkoxy, acyl, aryl, ar(lower)alkoxy, ar(lower)alkyl, heteroar(lower)alkyl, amino, heteroaryl, heterocyclyl or heterocyclyl(lower)alkyl, which may be substituted with one or more suitable substituent(s), R2 is hydrogen or lower alkyl, X is pyrrolidinylene or piperidinylene, Y is pyridylene, which may be substituted with one or more suitable substituent(s), Z is lower alkenylene, which may be substituted with lower alkyl or halogen, and salts thereof are useful as a histone deacetylase inhibitors.

Abstract: This invention relates to novel N-hydroxyacrylamide compounds of formula (I) and pharmaceutically acceptable salts thereof. More particularly, it relates to novel N-hydroxyacrylamide compounds and pharmaceutically acceptable salts thereof which act as a HDAC inhibitor, to a pharmaceutical composition comprising the same and to a method of using the same therapeutically in the treatment and/or prevention of HDAC-related disease.

Abstract: A compound having the formula (I): wherein R1 is hydrogen, lower alkyl, lower alkenyl, lower or higher alkynyl, cyclo(lower)alkyl, cyclo(higher)alkyl, cyclo(lower)alkyl(lower)alkyl, cyclo(higher)alkyl(lower)alkyl, cyclo(lower)alkenyl(lower)alkyl, aryl-fused cyclo(lower)alkyl, lower alkoxy, acyl, aryl, ar(lower)alkoxy, ar(lower)alkyl, heteroar(lower)alkyl, amino, heteroaryl, heterocyclyl or heterocyclyl(lower)alkyl, which may be substituted with one or more suitable substituent(s), R2 is hydrogen or lower alkyl, X is arylene, heterorarylene, cycloalkylene, heterocycloalkylene or aryl-fused cycloalkene, Y is arylene, heteroarylene, which may be substituted with one or more suitable substituent(s), Z lower alenylene, which may be substituted with lower alkyl or halogen, or a salt thereof. The compound is useful as a histone deacetylase inhibitor.

Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human being or animals.

Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human being or animals.

Abstract: A compound having the following formula (I): wherein R1 is hydrogen, lower alkyl, lower alkenyl, lower or higher alkynyl, cyclo(lower)alkyl, cyclo(higher)alkyl, cyclo(lower)alkyl(lower)alkyl, cyclo(higher)alkyl(lower)alkyl, cyclo(lower)alkenyl(lower)alkyl, aryl-fused cyclo(lower)alkyl, lower alkoxy, acyl, aryl, ar(lower)alkoxy, ar(lower)alkyl, heteroar(lower) alkyl, amino, heteroaryl, heterocyclyl or heterocyclyl(lower)alkyl, which may be substituted with one or more suitable substituent(s), R2 is hydrogen or lower alkyl, X is arylene, heteroarylene, cycloalkylene, heterocycloalkylene or aryl-fused cycloalkylene, Y is arylene or heteroarylene, which may be substituted with one or more suitable substituent(s), Z is lower alkenylene, which may be substituted with lower alkyl or halogen, or a salt thereof. The compound is useful as a histone deacetylase inhibitor.

Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human being or animals.

Abstract: A compound of the formula (I): in which R1, R2, R3, R4, R5, R6, R7, R8 and R9 are each as defined in the description, or a salt thereof. The object compound of the present invention has pharmacological activities such as Tachykinin antagonism, and is useful for manufacture of a medicament for treating or preventing Tachykinin-mediated diseases.

Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human being or animals.

Abstract: This invention relates to piperazine derivatives of the formula: wherein each symbol is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human being or animals.

Abstract: A compound of the formula (I): wherein in which R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 and R11 are each as defined in the description, or a salt thereof. The object compound of the present invention has pharmacological activities such as Tachykinin antagonism and is useful for manufacture of a medicament for treating or preventing Tachykinin-mediated diseases.

Abstract: A compound of the formula (I): in which Z, R1, R2, R8, R10, R11, R12, R13 and R14 are each as defined in the description, or a salt thereof. The object compound of the present invention has pharmacological activities such as Tachykinin antagonism, and is useful for manufacture of a medicament for treating or preventing Tachykinin-mediated diseases.

Abstract: A compound of the formula (I): in which Z, R1, R2, R8, R10, R11, R12, R13 and R14 are each as defined in the description, or a salt thereof. The object compound of the present invention has pharmacological activities such as Tachykinin antagonism, and is useful for manufacture of a medicament for treating or preventing Tachykinin-mediated diseases.

Abstract: This invention relates to piperazine derivatives of formula (I), wherein Y is bond or lower alkylene, R1 is aryl which may have substituent(s), R2 is aryl or indolyl, each of which may have substituent(s), R3 is hydrogen or lower alkyl, and R4 is as defined in the description, and its pharmaceutically acceptable salt, to processes for preparation thereof, to pharmaceutical composition comprising the same, and to a use of the same for treating or preventing Tachykinin-mediated diseases in human beings or animals.

Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is amino or protected amino,R.sup.2 is hydrogen or hydroxy protective group,R.sup.3 is carboxy or protected carboxy,R.sup.4 is hydrogen, lower alkenyl, acyloxy(lower)alkenyl, optionally substituted heterocyclic(lower)alkenyl, optionally substituted heterocyclic(lower)alkenylthio, optionally substituted heterocyclic(lower)alkylthio, or optionally substituted heterocyclic-thio(lower)alkylthio andR5 is halogen or lower alkyland pharmaceutically acceptable salts thereof, which is useful as a medicament for prophylactic and therapeutic treatment of infectious diseases.

Abstract: A compound of the formula: ##STR1## wherein R.sup.1 is amino, R.sup.2 is hydrogen,R.sup.3 is carboxy,R.sup.4 is heterocyclic(lower)alkylthio wherein said heterocyclic group is pyrazolyl and said lower alkyl group is methyl, andR.sup.5 is halogen; and pharmaceutically acceptable salts thereof.