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.
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.
[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.
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.
式 I 的化合物
或其药学上可接受的盐,其中 R1、R2、R3、R4 和 m 如说明书所述,用于治疗肥胖症和/或糖尿病。