Multisubstrate inhibitors of dopamine .beta.-hydroxylase. 1. Some 1-phenyl and 1-phenyl-bridged derivatives of imidazole-2-thione
摘要:
The synthesis and characterization of some 1-(phenylalkyl)imidazole-2-thiones as a novel class of "multisubstrate" inhibitors of dopamine beta-hydroxylase (DBH) are described. These inhibitors incorporate structural features that resemble both tyramine and oxygen substrates, and as evidenced by steady-state kinetics, they appear to bind both the phenethylamine binding site and the active site copper atom(s) in DBH. A series of structural congeners that incorporate different bridging chain lengths between the phenyl ring (dopamine mimic) and the imidazole-2-thione group (oxygen mimic) define the optimum distance for inhibitory potency and the likely intersite distance in the DBH active site. Additional bridging analogues were prepared to determine the active site bulk tolerance and the effects of heteroatom replacement.
[EN] This invention provides peptides that act as selective NPY2 receptor agonists and may be used to reduce food intake. The invention includes a peptide selected from a specific group of derivatized NPY-related peptides, or functional equivalents thereof. The invention is also directed to a method of treating obesity or related diseases in a mammal comprising administering a therapeutically effective amount of the peptide to said mammal to reduce food intake and body weight. [FR] Cette invention concerne des peptides qui agissent en tant qu'agonistes récepteur NPY2 sélectifs et qui peuvent être utilisés afin de réduire l'ingestion d'aliments. L'invention concerne un peptide sélectionné dans un groupe spécifique de peptide associé à NPY dérivatisé, ou des équivalents fonctionnels de ceux-ci. L'invention concerne également un procédé de traitement de l'obésité ou de maladies associées chez un mammifère qui consiste à administrer une quantité efficace sur le plan thérapeutique du peptide au mammifère afin de réduire son ingestion d'aliments et son poids corporel.
Multisubstrate inhibitors of dopamine .beta.-hydroxylase. 1. Some 1-phenyl and 1-phenyl-bridged derivatives of imidazole-2-thione
作者:Lawrence I. Kruse、Carl Kaiser、Walter E. DeWolf、James S. Frazee、Eleanor Garvey、Eileen L. Hilbert、Wayne A. Faulkner、Kathryn E. Flaim、John L. Sawyer、Barry A. Berkowitz
DOI:10.1021/jm00162a008
日期:1986.12
The synthesis and characterization of some 1-(phenylalkyl)imidazole-2-thiones as a novel class of "multisubstrate" inhibitors of dopamine beta-hydroxylase (DBH) are described. These inhibitors incorporate structural features that resemble both tyramine and oxygen substrates, and as evidenced by steady-state kinetics, they appear to bind both the phenethylamine binding site and the active site copper atom(s) in DBH. A series of structural congeners that incorporate different bridging chain lengths between the phenyl ring (dopamine mimic) and the imidazole-2-thione group (oxygen mimic) define the optimum distance for inhibitory potency and the likely intersite distance in the DBH active site. Additional bridging analogues were prepared to determine the active site bulk tolerance and the effects of heteroatom replacement.