Synthesis and pharmacological evaluation of highly potent dual histamine H2 and gastrin receptor antagonists
摘要:
The chemical modification of the dual histamine H-2 and gastrin receptor antagonists described in our preceding paper, particularly the modification of spacers as well as the alteration of their connecting bonds at the gastrin receptor antagonist site (GA) from the amide bond to the carbamate bond, significantly improved not only their dual activity but also the GA versus CCK-A receptor selectivity. Copyright (C) 1996 Elsevier Science Ltd
Succinoylamino benzodiazepines as inhibitors of Abeta protein production
申请人:Olson E. Richard
公开号:US20060122169A1
公开(公告)日:2006-06-08
This invention relates to novel lactams having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
SUCCINOYLAMINO BENZODIAZEPINES AS INHIBITORS OF ABETA PROTEIN PRODUCTION
申请人:Olson Richard E.
公开号:US20080207602A1
公开(公告)日:2008-08-28
This invention relates to novel lactams having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
SUCCINOYLAMINO BENZODIAZEPINES AS INHIBITORS OF AB PROTEIN PRODUCTION
申请人:Olson Richard E.
公开号:US20090069293A1
公开(公告)日:2009-03-12
This invention relates to novel lactams having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
SUCCINOYLAMINO BENZODIAZEPINES AS INHIBITORS OF Abeta PROTEIN PRODUCTION
申请人:Olson Richard E.
公开号:US20080171735A1
公开(公告)日:2008-07-17
This invention relates to novel lactams having the formula (I):
to their pharmaceutical compositions and to their methods of use. These novel compounds inhibit the processing of amyloid precursor protein and, more specifically, inhibit the production of Aβ-peptide, thereby acting to prevent the formation of neurological deposits of amyloid protein. More particularly, the present invention relates to the treatment of neurological disorders related to β-amyloid production such as Alzheimer's disease and Down's Syndrome.
In order to study structure-activity relationships of the previously reported dual histamine H-2 and gastrin receptor antagonists and also to improve their low oral absorbability, we tried two chemical modifications. One tried to decrease the high hydrophobicity of the parent hybrid compounds to an appropriate level by incorporating a hydrophilic group into the molecule and the other by replacing the more hydrophobic groups with less hydrophobic ones. The former compounds (type I) involved hybrid compounds with a hydroxyl group at a position of a spacer, a piperidine moiety of H(2)A, or a phenyl ring at the C-5 of the benzodiazepine skeleton as well as those with a free carboxyl group in the piperidine moiety of H(2)A. The latter (type II) involved hybrid compounds with the C-5-phenyl group replaced with either a methyl group or hydrogen atom. Among them, only a type I compound, (2-[3-(3-piperidin-1-ylmethylphenoxy)propylcarbamoyl]ethylcarbamoyl}methyl)carbamic acid 3-3-[5-(3-hydroxyphenyl)-1-methyl-2-oxo-2,3-dihydro-1H-1,4-benzodiazepin-3-yl]ureido}benzyl ester (18), showed potent dual histamine H-2 and gastrin receptor antagonistic activity, whereas others resulted in a significant decrease of histamine H-2 receptor antagonistic activity. The in vivo gastric acid antisecretory activity of 18 evaluated by Schild's rat method, however, did not suggest any notable improvement in oral absorbability. (C) 1997 Elsevier Science Ltd.