The present invention relates to an anti-SARS-CoV-2 drug including, as an active ingredient, a compound represented by formula (I):
[wherein R
1
is C
1
-C
8
alkyl or the like; and R
2
-R
9
is hydrogen, halogen, hydroxyl, or Q-(C
1
-C
8
alkyl), (Q is O, NH, or S) or the like], or a pharmaceutically acceptable salt thereof.
Structure–activity relationship-guided development of retinoic acid receptor-related orphan receptor gamma (RORγ)-selective inverse agonists with a phenanthridin-6(5H)-one skeleton from a liver X receptor ligand
摘要:
Retinoic acid receptor-related orphan receptors (RORs), which belong to the nuclear receptor superfamily, regulate many physiological processes, including hepatic gluconeogenesis, lipid metabolism, immune function and circadian rhythm. Since RORs resemble liver X receptors (LXRs) in the fold structure of their ligand-binding domains, we speculated that ROR-mediated transcription might be modulated by LXR ligands, in line with the multi-template hypothesis. Therefore, we screened our LXR ligand library for compounds with ROR ligand activity and identified a novel ROR ligand with a phenanthridin-6(5H)-one skeleton. Structure-activity relationship studies aimed at separating ROR inverse agonistic activity from LXR-agonistic activity enabled us to develop a series of ROR inverse agonists based on the phenanthridin-6(5H)-one skeleton, including a ROR gamma-selective inverse agonist. (C) 2014 Elsevier Ltd. All rights reserved.