Identification, Optimization, and Pharmacology of Acylurea GHS-R1a Inverse Agonists
摘要:
Ghrelin plays a major physiological role in the control of food intake, and inverse agonists of the ghrelin receptor (GHS-R1a) are widely considered to offer utility as antiobesity agents by lowering the set-point for hunger between meals. We identified an acylurea series of ghrelin modulators from high throughput screening and optimized binding affinity through structure activity relationship studies. Furthermore, we identified specific substructural changes, which switched partial agonist activity to inverse agonist activity, and optimized physicochemical and DMPK properties to afford the non-CNS penetrant inverse agonist 22 (AZ-GHS-22) and the CNS penetrant inverse agonist 38 (AZ-GHS-38). Free feeding efficacy experiments showed that CNS exposure was necessary to obtain reduced food intake in mice, and it was demonstrated using GHS-R1a null and wild-type mice that this effect operates through a mechanism involving GHS-R1a.
Solvent and ligand effects on selective mono- and dilithiation of 1-(chlorophenyl)pyrroles and 1-(methoxyphenyl)pyrroles †
作者:Katalin Fogassy、Krisztina Kovács、György M. Keserű、László Tőke、Ferenc Faigl
DOI:10.1039/b100008j
日期:——
methods for site-selective lithiation of 1-(chlorophenyl)pyrroles and 1-(methoxyphenyl)pyrroles are described. Mono- or dilithiations are governed by change of both the temperature and the solvent from tetrahydrofuran to diethyl ether. Regioselectivities could be influenced by the quality of the metallating agent. Thus, 1-(4-chlorophenyl)pyrrole was dilithiated with activated butyllithium at 0 °C to
[EN] BENZOTHIAZOLES AS GHRELIN RECEPTOR MODULATORS<br/>[FR] AGENTS THÉRAPEUTIQUES - 802
申请人:ASTRAZENECA AB
公开号:WO2009047558A1
公开(公告)日:2009-04-16
A compound of formula (I) or a pharmaceutically acceptable salt thereof in which R1, R2 , R3, R4 and m are as described in the specification for use in the treatment of obesity and/or diabetes.
A compound of formula I
or a pharmaceutically acceptable salt thereof in which R
1
, R
2
, R
3
, R
4
and m are as described in the specification for use in the treatment of obesity and/or diabetes.
A compound of formula I
or a pharmaceutically acceptable salt thereof in which R
1
, R
2
, R
3
, R
4
and m are as described in the specification for use in the treatment of obesity and/or diabetes.
A compound of formula I
or a pharmaceutically acceptable salt thereof in which R
1
, R
2
, R
3
, R
4
and m are as described in the specification for use in the treatment of obesity and/or diabetes.