2-Nitrophenylcarbamoyl-(S)-prolyl-(S)-3-(2-naphthyl)alanyl-N-benzyl-N- methylamide (SDZ NKT 343), a Potent Human NK1 Tachykinin Receptor Antagonist with Good Oral Analgesic Activity in Chronic Pain Models
摘要:
A lead compound which had sub-micromolar affinity for the rabbit NK1 receptor but negligible affinity for rat NK1 receptors, 3a, was discovered by directed screening. 2-Substitution in the ring of the benzylthiourea substituent in the initial lead was found to be important, and halogens (Cl, Br) in this position were found to improve affinity for the human receptor. The activity of a series of 2-halo-substituted benzylthioureas was then optimized by modification of the proline diphenylmethyl amide, guided by a simple conceptual model based on structural overlay between these early antagonists and NK1 selective peptides. In this way, aromatic amino acid amides were identified which had improved affinity with respect to the starting diphenylmethyl (DPM) amides. The first sub-nanomolar ligand for the human NK1 receptor which arose from this series, 4af, combined a 2-chlorobenzylthiourea unit with a 2-naphthylalanine amide. Contemporaneously it was discovered that the benzylthiourea unit could be simplified to a phenylthiourea providing that an appropriate 2-substituent was also incorporated. Combination of these two series gave 2-NO2 phenylthiourea analogues which led directly to the analogous urea, 5f(2-nitrophenylcarbamoyl-(S)-prolyl-(S)-3-(2-naphthyl)alanyl-N-benzyl-N-methylamide, SDZ NKT 343), a highly potent ligand for the human NK1 receptor (K-i = 0.16 nM). In addition to its high in vitro potency, 5f proved to be a potent orally active analgesic in guinea pig models of chronic inflammatory and neuropathic pain. The nature of the 2-aryl substituent was found to be critical for oral activity in this series. Clinical evaluation of 5f as a novel analgesic agent is currently underway.
Methods and compositions for treating vasomotor symptoms
申请人:UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
公开号:US11083726B2
公开(公告)日:2021-08-10
The present disclosure is generally directed to compositions and methods for treating or limiting development of vasomotor symptoms in a subject.
本公开总体上涉及用于治疗或限制受试者血管运动症状发展的组合物和方法。
Org. Process Res. Dev. 1999, 3, 409-415
作者:
DOI:——
日期:——
METHODS AND COMPOSITIONS FOR TREATING VASOMOTOR SYMPTOMS
申请人:UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
公开号:US20150272927A1
公开(公告)日:2015-10-01
The present disclosure is generally directed to compositions and methods for treating or limiting development of vasomotor symptoms in a subject.
Methods and Compositions for Treating Vasomotor Symptoms
申请人:UNIVERSITY OF WASHINGTON THROUGH ITS CENTER FOR COMMERCIALIZATION
公开号:US20170020855A1
公开(公告)日:2017-01-26
The present disclosure is generally directed to compositions and methods for treating or limiting development of vasomotor symptoms in a subject.
2-Nitrophenylcarbamoyl-(<i>S</i>)-prolyl-(<i>S</i>)-3-(2-naphthyl)alanyl-<i>N</i>-benzyl-<i>N</i>- methylamide (SDZ NKT 343), a Potent Human NK<sub>1</sub> Tachykinin Receptor Antagonist with Good Oral Analgesic Activity in Chronic Pain Models
作者:C. Walpole、S. Y. Ko、M. Brown、D. Beattie、E. Campbell、F. Dickenson、S. Ewan、G. A. Hughes、M. Lemaire、J. Lerpiniere、S. Patel、L. Urban
DOI:10.1021/jm970499g
日期:1998.8.1
A lead compound which had sub-micromolar affinity for the rabbit NK1 receptor but negligible affinity for rat NK1 receptors, 3a, was discovered by directed screening. 2-Substitution in the ring of the benzylthiourea substituent in the initial lead was found to be important, and halogens (Cl, Br) in this position were found to improve affinity for the human receptor. The activity of a series of 2-halo-substituted benzylthioureas was then optimized by modification of the proline diphenylmethyl amide, guided by a simple conceptual model based on structural overlay between these early antagonists and NK1 selective peptides. In this way, aromatic amino acid amides were identified which had improved affinity with respect to the starting diphenylmethyl (DPM) amides. The first sub-nanomolar ligand for the human NK1 receptor which arose from this series, 4af, combined a 2-chlorobenzylthiourea unit with a 2-naphthylalanine amide. Contemporaneously it was discovered that the benzylthiourea unit could be simplified to a phenylthiourea providing that an appropriate 2-substituent was also incorporated. Combination of these two series gave 2-NO2 phenylthiourea analogues which led directly to the analogous urea, 5f(2-nitrophenylcarbamoyl-(S)-prolyl-(S)-3-(2-naphthyl)alanyl-N-benzyl-N-methylamide, SDZ NKT 343), a highly potent ligand for the human NK1 receptor (K-i = 0.16 nM). In addition to its high in vitro potency, 5f proved to be a potent orally active analgesic in guinea pig models of chronic inflammatory and neuropathic pain. The nature of the 2-aryl substituent was found to be critical for oral activity in this series. Clinical evaluation of 5f as a novel analgesic agent is currently underway.