A Unique Approach
to Design Potent and Selective Cyclic
Adenosine Monophosphate Response Element Binding Protein, Binding
Protein (CBP) Inhibitors

Bronner, Sarah M.; Murray, Jeremy; Romero, F. Anthony; Lai, Kwong Wah; Tsui, Vickie; Cyr, Patrick; Beresini, Maureen H.; de leon Boenig, Gladys; Chen, Zhongguo; Choo, Edna F.; Clark, Kevin R.; Crawford, Terry D.; Jayaram, Hariharan; Kaufman, Susan; Li, Ruina; Li, Yingjie; Liao, Jiangpeng; Liang, Xiaorong; Liu, Wenfeng; Ly, Justin; Maher, Jonathan; Wai, John; Wang, Fei; Zheng, Aijun; Zhu, Xiaoyu; Magnuson, Steven

doi:10.1021/acs.jmedchem.7b01372.s001

jm7b01372_si_001.pdf (332.5 kB)

A Unique Approach to Design Potent and Selective Cyclic Adenosine Monophosphate Response Element Binding Protein, Binding Protein (CBP) Inhibitors

journal contribution

posted on 2017-11-20, 00:00 authored by Sarah M. Bronner, Jeremy Murray, F. Anthony Romero, Kwong Wah Lai, Vickie Tsui, Patrick Cyr, Maureen H. Beresini, Gladys de leon Boenig, Zhongguo Chen, Edna F. Choo, Kevin R. Clark, Terry D. Crawford, Hariharan Jayaram, Susan Kaufman, Ruina Li, Yingjie Li, Jiangpeng Liao, Xiaorong Liang, Wenfeng Liu, Justin Ly, Jonathan Maher, John Wai, Fei Wang, Aijun Zheng, Xiaoyu Zhu, Steven Magnuson

The epigenetic regulator CBP/P300 presents a novel therapeutic target for oncology. Previously, we disclosed the development of potent and selective CBP bromodomain inhibitors by first identifying pharmacophores that bind the KAc region and then building into the LPF shelf. Herein, we report the “hybridization” of a variety of KAc-binding fragments with a tetrahydroquinoline scaffold that makes optimal interactions with the LPF shelf, imparting enhanced potency and selectivity to the hybridized ligand. To demonstrate the utility of our hybridization approach, two analogues containing unique Asn binders and the optimized tetrahydroquinoline moiety were rapidly optimized to yield single-digit nanomolar inhibitors of CBP with exquisite selectivity over BRD4(1) and the broader bromodomain family.