Discovery of a new class of valosine containing protein (VCP/P97) inhibitors for the treatment of non-small cell lung cancer
摘要:
Valosine containing protein (VCP/p97) is a member of the AAA ATPase family involved in several essential cellular functions and plays an important role in the ubiquitin-mediated degradation of misfolded proteins. P97 has a significant role in maintaining the cellular protein homeostasis for tumor cell growth and survival and has been found overexpressed in many tumor types. No new molecule entities based on p97 target were approved in clinic. Herein, a series of novel pyrimidine structures as p97 inhibitors were designed and synthesized. After enzymatic evaluations, structure-activity relationships (SAR) were discussed in detailed. Among the screened compounds, derivative 35 showed excellent enzymatic inhibitory activity (IC50, 36 nM). The cellular inhibition results showed that compound 35 had good antiproliferative activity against the non-small cell lung cancer A549 cells (IC50, 1.61 mu M). Liver microsome stability showed that the half-life of compound 35 in human liver microsome was 42.3 min, which was more stable than the control CB-5083 (25.8 min). The in vivo pharmacokinetic results showed that the elimination phase half-lives of compound 35 were 4.57 h for ig and 3.64 h for iv, respectively and the oral bioavailability was only 4.5%. These results indicated that compound 35 could be effective for intravenous treatment of non-small cell lung cancer.
Discovery of a First-in-Class, Potent, Selective, and Orally Bioavailable Inhibitor of the p97 AAA ATPase (CB-5083)
摘要:
The AAA-ATPase p97 plays vital roles in mechanisms of protein homeostasis, including ubiquitin proteasome system (ups) mediated protein degradation, endoplasmic reticulum-associated degradation (BRAD), and autophagy. Herein we describe our lead optimization efforts focused on in vitro potency, ADME, and pharmaceutical properties that led to the discovery of a potent, ATP-competitive, D2-selective, and orally bioavailable p97 inhibitor 71, CB-6083. Treatment of tumor cells with 71 leads to significant accumulation of markers associated with inhibition of UPS and ERAD functions, which induces irresolvable proteotoxic stress and cell, death. In tumor bearing mice, oral administration of 71 causes rapid accumulation Of markers of the unfolded protein response (UPR) and subsequently induces apoptosis leading to Sustained antitumor activity in in vivo, xenograft models of both solid and hematological tumors. 71 has been taken into phase I clinical trials in patients with multiple myeloma and solid tumors.
[EN] MONO AND BICYCLIC RING BORONIC ACID, ESTER AND SALT COMPOUNDS AS INHIBITORS OF P97 COMPLEX<br/>[FR] COMPOSÉS D'ESTER, DE SEL ET D'ACIDE BORONIQUE À NOYAU MONOCYCLIQUE ET BICYCLIQUE EN TANT QU'INHIBITEURS DE COMPLEXE P97
申请人:CLEAVE BIOSCIENCES INC
公开号:WO2016200840A1
公开(公告)日:2016-12-15
Monocyclic or bicyclic ring boronic acid or ester compounds having an arylalkyi amine substituent at the 4 position and a substituted 5:6 bicyclic group at the 2 position of the mono or bicyclic ring boronic acid or ester as well as optional aliphatic, functional and/or aromatic components substituted at other positions of the mono or bicyclic boronic acid or ester compounds are disclosed. These compounds are inhibitors of the AAA proteasome complex containing p97 and are effective medicinal agents for treatment of diseases associated with the Valosin containing protein and p97 bioactivity such as cancer. Formula (I).
[EN] SERINE/THREONINE PAK1 INHIBITORS<br/>[FR] INHIBITEURS DE SÉRINE/THRÉONINE PAK1
申请人:HOFFMANN LA ROCHE
公开号:WO2013026914A1
公开(公告)日:2013-02-28
Compounds having the formula I wherein A, Z, R1a, R1b, R2, R3, R4, R5, R6, R7, R9, R10, Ra, Rb and n are as defined herein are inhibitors of PAK1. Also disclosed are compositions and methods for treating cancer and hyperproliferative disorders.
[EN] FUSED PYRIMIDINES AS INHIBITORS OF p97 COMPLEX<br/>[FR] PYRIMIDINES FUSIONNÉES EN TANT QU'INHIBITEURS DU COMPLEXE P97
申请人:ZHOU HAN-JIE
公开号:WO2014015291A1
公开(公告)日:2014-01-23
Fused pyrimidine compounds having a saturated, unsaturated or aromatic A ring fused to a pyrimidine ring and having a complex substituents at the 2 position and a substituted amine at the 4 position of the pyrimidine ring as well as optional aliphatic, functional and/or aromatic components substituted at other positions of the pyrimidine ring and A ring are disclosed. These compounds are inhibitors of the AAA proteasome complex containing p97 and are effective medicinal agents for treatment of diseases associated with p97 bioactivity such as cancer.
Development of Red‐Shifted and Fluorogenic Nucleoside and Oligonucleotide Diarylethene Photoswitches
作者:Theresa Kolmar、Antonia Becker、Ronja A. Pfretzschner、Alina Lelke、Andres Jäschke
DOI:10.1002/chem.202103133
日期:2021.12.9
The core structure of nucleoside based diarylethenes was modified, with the aim of bathochromically shifting the absorption wavelength in the visible range (λmax,vis) and to introduce photomodulatable fluorescence. Extending the π-system of the bridging unit resulted in a desired red shift of λmax,vis and fluorogenicity could be obtained by the introduction of a fluorescent adenosine analogue.
TRICYCLIC FUSED PYRIMIDINE COMPOUNDS AS INHIBITORS OF p97 COMPLEX
申请人:Cleave Biosciences, Inc.
公开号:US20170267679A1
公开(公告)日:2017-09-21
Tricyclic fused pyrimidine compounds having an arylalkyl amine substituent at the P4 position and a substituted 1H-indol-1-yl, 1H-indol-3-yl, indanyl, indazol-1-yl, indazol-3-yl, benzotriazol-1-yl or 1H-benz[d]imidazol-1-yl group at the P2 position well as optional aliphatic, functional and/or aromatic components substituted at other positions of the tricyclic compounds of the invention. These compounds are inhibitors of the AAA proteasome complex containing p97 and are effective medicinal agents for treatment of diseases associated with p97 bioactivity such as cancer.