Discovery of 6-Oxo-4-phenyl-hexanoic acid derivatives as ROR gamma t inverse agonists showing favorable ADME profile.
Nakajima, R., Oono, H., Kumazawa, K., Ida, T., Hirata, J., White, R.D., Min, X., Guzman-Perez, A., Wang, Z., Symons, A., Singh, S.K., Mothe, S.R., Belyakov, S., Chakrabarti, A., Shuto, S.(2021) Bioorg Med Chem Lett 36: 127786-127786
- PubMed: 33493627 
- DOI: https://doi.org/10.1016/j.bmcl.2021.127786
- Primary Citation of Related Structures:  
7JTW - PubMed Abstract: 
The retinoic acid receptor-related orphan nuclear receptor gamma t (RORγt), which is a promising therapeutic target for immune diseases, is a major transcription factor of genes related to psoriasis pathogenesis, such as interleukin (IL)-17A, IL-22, and IL-23R. Inspired by the co-crystal structure of RORγt, a 6-oxo-4-phenyl-hexanoic acid derivative 6a was designed, synthesized, and identified as a ligand of RORγt. The structure-activity relationship (SAR) studies in 6a, which focus on the improvement of its membrane permeability profile by introducing chlorine atoms, led to finding 12a, which has a potent RORγt inhibitory activity and a favorable pharmacokinetic profile.
Organizational Affiliation: 
Teijin Institute for Bio-medical Research, Teijin Pharma Limited, 4-3-2 Asahigaoka, Hino, Tokyo 191-8512, Japan. Electronic address: r.nakajima@teijin.co.jp.