δ5d

Prostaglandin G H synthase 1 inhibitor (CP 74006) is a selective D5D inhibitor with an IC(50) value of 20 nM.

D5D-IN-326 is an orally active delta-5 desaturase (D5D) inhibitor (IC50s: 72 and 22 nM for rat and human D5D in enzymic and cell-based assays). It has no effect on D6D or D9D activity. D5D-IN-326 reduces insulin resistance and decreases body weight in die

CP-24879 hydrochloride (CP-24879 HCl), a Δ5D Δ6D dual-inhibitor, can significantly reduce intracellular lipid accumulation and inflammatory injury in hepatocytes. CP-24879 hydrochloride exhibits superior antisteatotic and anti-inflammatory actions in fat-1 and ω-3-treated hepatocytes.

T-3364366 is an inhibitor of thienopyrimidinone delta-5 desaturase (Δ5D) with IC50s of 1.9 nM and 2.1 nM in HepG2 and RLN-10 cells, respectively.

MK-8245 trifluoroacetate is a phenoxy piperidine isoxazole derivative functioning as a potent, liver-targeting stearoyl-CoA desaturase (SCD) inhibitor, demonstrating significant anti-diabetic and anti-dyslipidemic effects. It showcases high specificity and efficacy against SCD1 across various species, with IC50 values of 1 nM for human SCD1 and 3 nM for both rat and mouse SCD1. MK-8245's mechanism includes a tetrazole acetic acid moiety that facilitates liver-targeting through OATPs recognition. Its inhibition potency in rat hepatocyte assays (IC50 of 68 nM) surpasses that in HepG2 cell assays devoid of active OATPs (IC50 of ~1 μM), highlighting its liver specificity. Moreover, MK-8245 exhibits over 100,000-fold selectivity against Δ-5 and Δ-6 desaturases in comparative assays. In vivo studies reveal MK-8245's preferential liver distribution in mice, rats, dogs, and rhesus monkeys, underscoring its potential for minimizing adverse effects in non-target tissues. Additionally, its administration in eDIO mice before glucose challenges significantly improves glucose clearance, indicating its therapeutic promise in diabetes management.