Synthesis and biological evaluation of new non-imidazole H3-receptor antagonists of the 2-aminobenzimidazole series
摘要:
A novel series of non-imidazole H-3-receptor antagonists was developed, by chemical modification of a potent lead H-3-antagonist composed by an imidazole ring connected through an alkyl spacer to a 2-aminobenzimidazole moiety (e.g., 2-[[3-[4(5)-imidazolyl]propyl]amino]benzimidazole), previously reported by our research group. We investigated whether the removal of the imidazole ring could allow retaining high affinity for the H-3-receptor, thanks to the interactions undertaken by the 2-aminobenzimidazole moiety at the binding site. The imidazole ring of the lead was replaced by a basic piperidine or by a lipophilic p-chlorophenoxy substituent, modulating the spacer length from three to eight methylene groups; moreover, the substituents were moved to the 5(6) position of the benzimidazole nucleus. Within both the 2-alkylaminobenzimidazole series and the 5(6)-alkoxy-2-amino-benzimidazole one, the greatest H-3-receptor affinity was obtained for the piperidine-substituted compounds, while the presence of the p-chlorophenoxy group resulted in a drop in affinity. The optimal chain length was different in the two series. Even if the new compounds did not reach the high receptor affinity shown by the imidazole-containing lead compound, it was possible to get good H-3-antagonist potencies with 2-aminobenzimidazoles having a tertiary amino group at appropriate distance. (c) 2005 Elsevier Ltd. All rights reserved.
Synthesis and biological evaluation of new non-imidazole H3-receptor antagonists of the 2-aminobenzimidazole series
摘要:
A novel series of non-imidazole H-3-receptor antagonists was developed, by chemical modification of a potent lead H-3-antagonist composed by an imidazole ring connected through an alkyl spacer to a 2-aminobenzimidazole moiety (e.g., 2-[[3-[4(5)-imidazolyl]propyl]amino]benzimidazole), previously reported by our research group. We investigated whether the removal of the imidazole ring could allow retaining high affinity for the H-3-receptor, thanks to the interactions undertaken by the 2-aminobenzimidazole moiety at the binding site. The imidazole ring of the lead was replaced by a basic piperidine or by a lipophilic p-chlorophenoxy substituent, modulating the spacer length from three to eight methylene groups; moreover, the substituents were moved to the 5(6) position of the benzimidazole nucleus. Within both the 2-alkylaminobenzimidazole series and the 5(6)-alkoxy-2-amino-benzimidazole one, the greatest H-3-receptor affinity was obtained for the piperidine-substituted compounds, while the presence of the p-chlorophenoxy group resulted in a drop in affinity. The optimal chain length was different in the two series. Even if the new compounds did not reach the high receptor affinity shown by the imidazole-containing lead compound, it was possible to get good H-3-antagonist potencies with 2-aminobenzimidazoles having a tertiary amino group at appropriate distance. (c) 2005 Elsevier Ltd. All rights reserved.
Compounds of formula (I) or pharmaceutically acceptable salts thereof, and use for treating cancer thereof are disclosed, wherein, the definitions of X, Y, R
1
, R
2
and n are described in description.
[EN] PIPERIDINE DERIVATIVES AND COMPOSITIONS FOR THE INHIBITION OF NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE (NAMPT)<br/>[FR] DÉRIVÉS DE PIPÉRIDINE ET COMPOSITIONS POUR L'INHIBITION DE NICOTINAMIDE PHOSPHORIBOSYLTRANSFÉRASE (NAMPT)
申请人:FORMA TM LLC
公开号:WO2012154194A1
公开(公告)日:2012-11-15
The present invention relates to compounds and compositions for the inhibition of NAMPT, their synthesis, applications and antidotes. An illustrative compound of the invention is shown below: Formula (I)
Disclosed are compounds which inhibit the activity of NAMPT, compositions containing the compounds and methods of treating diseases during which NAMPT is expressed. Disclosed are compounds which inhibit the activity of ROCK, compositions containing the compounds and methods of treating diseases during which ROCK is expressed.
PIPERIDINE DERIVATIVES AND COMPOSITIONS FOR THE INHIBITION OF NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE (NAMPT)
申请人:Bair Kenneth W.
公开号:US20140248240A1
公开(公告)日:2014-09-04
The present invention relates to compounds and compositions for the inhibition of NAMPT, their synthesis, applications and antidotes. An illustrative compound of the invention is shown below: Formula (I)
Disclosed are compounds which inhibit the activity of NAMPT, compositions containing the compounds and methods of treating diseases during which NAMPT is expressed. Disclosed are compounds which inhibit the activity of ROCK, compositions containing the compounds and methods of treating diseases during which ROCK is expressed.