Structural Features Important for .sigma.1 Receptor Binding
摘要:
Two problems that have hampered a receptor research are (i) a lack of high-affinity agents and iii) the recent identification Of multiple populations of a receptors (i.e., sigma(1) and sigma(2) sites). Recently, several high-affinity sigma ligands have been identified, and the term superpotent sigma ligands has been coined to describe agents with K-i values of <1 nM. We have previously shown that appropriately N-substituted phenylalkylamines bind at a receptors with high affinity. In the present investigation, we examine the structure-affinity relationships of these phenylalkylamine derivatives for sigma binding and describe some of the first superpotent sigma(1) ligands. A binding model was developed to account for the structural features of the phenylalkylamines that appear to be important for the interaction of these agents with sigma(1) sites.
Identification and exploitation of the .sigma.-opiate pharmacophore
摘要:
Certain benzomorphan ''sigma-opiates'' such as N-allylnormetazocine (NANM) bind at sigma receptors with modest affinity and with little selectivity (i.e., they also bind at phencyclidine or PCP sites). In order to identify the primary pharmacophore of the benzomorphans, we prepared several amine-substituted derivatives of 1-phenyl-2-aminopropane. Several simple alkyl-substituted analogues were shown to bind at sigma sites with affinities comparable to that of NANM itself; among these was the N-benzyl derivative 9 (K(i) = 117 nM). Lengthening the spacer between the terminal amine and the phenyl group from one to five methylene units resulted in a significant increase in affinity (e.g. 15, K(i) = 6.3 nM). In addition, unlike the benzomorphans, these phenalkylamines do not bind at PCP sites. The results of the present study reveal that (a) the 1-phenyl-2-aminopropane nucleus of the benzomorphans is sufficient for binding at sigma sites provided that the terminal amine is not a primary amine and that (b) introduction of (phenylalkyl)amine substituents affords compounds that represent a new class of high-affinity sigma-selective agents.
Disclosed are multibinding compounds which are muscarinic receptor antagonists. The multibinding compounds of this invention containing from 2 to 10 ligands covalently attached to one or more linkers. Each ligand is, independently of each other, a muscarinic receptor antagonist or an allosteric modulator provided that at least one of said ligand is a muscarinic receptor antagonist. The multibinding compounds of this invention are useful in the treatment and prevention of diseases such as chronic obstructive pulmonary disease, chronic bronchitis, irritable bowel syndrome, urinary incontinence, and the like.
Vesicular monoamine transporter-2 ligands and their use in the treatment of psychostimulant abuse
申请人:University of Kentucky Research Foundation
公开号:US10668030B2
公开(公告)日:2020-06-02
The present invention relates to methods of treatment of a disease or pathology of the central nervous system, an eating disorder, or substance use disorder, drug dependence/abuse and withdrawal therefrom comprising administering at least one N-phenylalkyl amphetamine derivative and pharmaceutical compositions comprising at least one N-phenylalkyl amphetamine derivative to an individual in need thereof.
VESICULAR MONOAMINE TRANSPORTER-2 LIGANDS AND THEIR USE IN THE TREATMENT OF PSYCHOSTIMULANT ABUSE
申请人:University of Kentucky Research Foundation
公开号:US20200237688A1
公开(公告)日:2020-07-30
The present invention relates to methods of treatment of a disease or pathology of the central nervous system, an eating disorder, or substance use disorder, drug dependence/abuse and withdrawal therefrom comprising administering at least one N-phenylalkyl amphetamine derivative and pharmaceutical compositions comprising at least one N-phenylalkyl amphetamine derivative to an individual in need thereof.
Vesicular Monoamine Transporter-2 Ligands and Their Use in the Treatment of Psychostimulant Abuse
申请人:University of Kentucky Research Foundation
公开号:US20200290948A1
公开(公告)日:2020-09-17
The present invention relates to methods of treatment of a disease or pathology of the central nervous system, an eating disorder, or substance use disorder, drug dependence/abuse and withdrawal therefrom comprising administering at least one N-phenylalkyl amphetamine derivative and pharmaceutical compositions comprising at least one N-phenylalkyl amphetamine derivative to an individual in need thereof.