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Anti-Cancer Agents in Medicinal Chemistry

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ISSN (Print): 1871-5206
ISSN (Online): 1875-5992

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General Review Article

Advancements in Small Molecule PROTACs Containing Indole/Spiro-fused Oxindole Scaffolds: An Emerging Degrader Targeting Cancers

Author(s): Xiang Li, Yanqing Liu, Wei Huang, Xin Xie, Hongping Zhu, Cheng Peng* and Bo Han*

Volume 23, Issue 10, 2023

Published on: 15 July, 2022

Page: [1164 - 1173] Pages: 10

DOI: 10.2174/1871520622666220509175305

Price: $65

Abstract

Indole and spiro-fused oxindole frameworks widely exist in a variety of natural bioactive products, pharmaceuticals, and drug candidates, featuring unique functions in the regulation of proliferation, infiltration, and metastasis of cancer cells. In recent years, significant progress in proteolysis targeting chimeric (PROTAC) technology that employs ubiquitin-proteasome system (UPS) to eliminate disease-associated proteins has been witnessed, thus opening a promising avenue to the discovery of new indole-related drugs.

In this review, we focus on summarizing the achievements of small molecule PROTACs that involve indole/spirofused oxindole scaffolds in the part of ligands of the protein of interest (POI). Current challenges and future directions in this promising field are discussed at the end of this review. For the convenience of readers, our review is divided into five parts according to the types of target proteins. We hope this review could bring a quick look and some inspiration to researchers in relevant fields.

Keywords: Targeted protein degradation, PROTAC, Ubiquitin-proteasome system, Small molecule, Indole derivative, Spirocycle.

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