Design of Cytochrome P450 1B1 Inhibitors via a Scaffold-Hopping Approach

Austin C. Hachey, Alexander D. Fenton, David K. Heidary, Edith C. Glazer

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Cytochrome P450 1B1 (CYP1B1) is a potential drug target in cancer research that is overexpressed in several solid tumors but is present only at low levels in healthy tissues. Its expression is associated with resistance to common chemotherapeutics, while inhibitors restore efficacy to these drugs in model systems. The majority of CYP1B1 inhibitors are derived from a limited number of scaffolds, and few have achieved outstanding selectivity against other human CYPs, which could impede clinical development. This study explores a new chemical space for CYP1B1 inhibitors using a scaffold-hopping approach and establishes 2,4-diarylthiazoles as a promising framework for further development. From a small library, compound 15 emerged as the lead, with picomolar CYP1B1 inhibition, and over 19,000-fold selectivity against its relative, CYP1A1. To investigate the activity of 15, molecular dynamics, optical spectroscopy, point mutations, and traditional structure-activity relationships were employed and revealed key interactions important for the development of CYP1B1 inhibitors.

Original languageEnglish
Pages (from-to)398-412
Number of pages15
JournalJournal of Medicinal Chemistry
Issue number1
StatePublished - Jan 12 2023

Bibliographical note

Funding Information:
We gratefully acknowledge the support of the National Institutes of Health under Award Number R01GM138882. A.C.H. thanks Kimberly Stevens for biological research support and Dr. Dmytro Havrylyuk for chemistry research support and insightful discussions.

Publisher Copyright:
© 2023 American Chemical Society. All rights reserved.

ASJC Scopus subject areas

  • Molecular Medicine
  • Drug Discovery


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