SRD5A1-IN-1 (Compound 4) is a competitive and covalent steroid 5α-reductase type 1 (SRD5A1) inhibitor with an IC50 of 1.44 μM. SRD5A1-IN-1 modulates SRD5A1 function, leading to a lower level of dihydrotestosterone (DHT) production and SRD5A1 protein suppression[1].
[1] Lin A C K, et al. Caffeic acid N-[3, 5-bis (trifluoromethyl) phenyl] amide as a non-steroidal inhibitor for steroid 5α-reductase type 1 using a human keratinocyte cell-based assay and molecular dynamics. Scientific Reports, 2022, 12(1): 1-20.