OGT-IN-4 (compound 4a) is an O-GlcNAc transferase (OGT) inhibitor with a Kd of 8 nM. OGT-IN-4 can be utilized in OGT related research[1].
References
[1] Martin SES, et al. Structure-Based Evolution of Low Nanomolar O-GlcNAc Transferase Inhibitors. J Am Chem Soc. 2018 Oct 24;140(42):13542-13545. DOI:10.1021/jacs.8b07328