It is this compound https://pubmed.ncbi.nlm.nih.gov/39106304/
"DDL-920 is a potent, selective and brain permeable negative allosteric modulator (NAM) of the γ-aminobutyric acid type A receptors (GABARs), inhibits parvalbumin (PV) expressing interneurons (PV+INs) and consequently enhances γ-oscillations both in vitro and in vivo."