Etilevodopa is an ethyl-ester prodrug of Levodopa which is used for the treatment of Parkinson's disease (PD). It is rapidly hydrolyzed to Levodopa and ethanol by nonspecific esterases in the gastrointestinal tract. Levodopa is the direct precursor of dop
Fosinoprilat, an active phosphinic acid metabolite of prodrug fosenopril, is activated by esterases in vivo. Fosinoprilat binds zinc with phosphinic acid group.
Lorajmine, a monochloroacetyl derivative of ajmaline, is a class Ia antiarrhythmic agent that is rapidly hydrolyzed to ajmaline by plasma and tissue esterases.
AM7499 is a non-selective cannabinoid receptor agonist with remarkably high in vitro and in vivo potency. It is readily hydrolysed by plasma esterases and to be less prone to deposition in bodily fat than existing classical cannabinoid agonists.
Dabigatran acyl-β-D-glucuronide is a major active metabolite of the thrombin inhibitor dabigatran . The prodrug of dabigatran, dabigatran etexilate , is hydrolyzed by plasma esterases to form dabigatran, which is metabolized primarily by the UDP-glucuronosyltransferase (UGT) isoform UGT2B15 to form dabigatran acyl-β-D-glucuronide. Dabigatran acyl-β-D-glucuronide increases activated partial thromboplastin time (aPTT) in isolated human platelet-poor plasma equipotently to dabigatran.
In addition to its role in the Krebs cycle, α-ketoglutarate (2-oxoglutarate) has roles as a substrate or modulator of enzymes. 5-Octyl-α-ketoglutarate, also known as α-ketoglutarate octyl ester, is a stable, cell-permeable molecule that generates free α-ketoglutarate upon hydrolysis of the ester bond by cytoplasmic esterases. It is used in experiments to increase levels of intracellular α-ketoglutarate. 5-Octyl-α-ketoglutarate has been shown to modulate a variety of enzymes and signaling pathways, particularly in the context of glycolysis, hypoxia, and cancer.
Resolvin D1 is produced physiologically from the sequential oxygenation of docosahexaenoic acid by 15- and 5-lipoxygenase . It reduces human polymorphonuclear leukocyte transendothelial migration, the earliest event in acute inflammation, with an EC50 value of ~30 nM. RvD1 methyl ester is a methyl ester version of the free acid that may act as a lipophilic prodrug form that will alter its distribution and pharmacokinetic properties. The methyl ester moiety is susceptible to cleavage by intracellular esterases, leaving the free acid.
Resolvin D2 (RvD2) is a lipid mediator biosynthesized by the sequential oxygenation of docosahexaenoic acid by 15- and 5-lipoxygenase. It evokes diverse anti-inflammatory effects which may mediate the resolution of inflammation. RvD2 methyl ester is a methyl ester version of the free acid which may act as a lipophilic prodrug form that will alter its distribution and pharmacokinetic properties. The methyl ester moiety is susceptible to cleavage by intracellular esterases, leaving the free acid.
Resolvin D3 methyl ester is a methyl ester version of the free acid that may act as a lipophilic prodrug form that will alter its distribution and pharmacokinetic properties. The methyl ester moiety is susceptible to cleavage by intracellular esterases, leaving the free acid.
Prostaglandin E2 (PGE2) isopropyl ester is a more lipophilic form of the free acid, PGE2. PG esters have enhanced lipid solubility compared to their parent compounds. They are generally hydrolyzed to the free acid by endogenous esterases upon in vivo administration, making the esters useful prodrugs. In general, the C-1 esters of PGs show greatly diminished receptor activity in vitro compared to the parent free acids.
Cefditoren Pivoxil is a semi-synthetic, broad-spectrum, beta-lactamase resistant, third-generation cephalosporin antibiotic with bactericidal activity. Cefditoren pivoxil is a prodrug that is rapidly hydrolyzed by intestinal esterases during absorption to the microbiologically active cefditoren, an active aminothiazolyl cephalosporin. Cefditoren inactivates penicillin binding proteins (PBPs) thereby interfering with peptidoglycan synthesis and inhibiting bacterial cell wall synthesis.
Clofibric acid-d4 is intended for use as an internal standard for the quantification of clofibric acid by GC- or LC-MS. Clofibric acid is a peroxisome proliferator-activated receptor α (PPARα) agonist (EC50 = 50 µM in a transactivation assay) and the active metabolite of clofibrate. It is formed from clofibrate by tissue and serum esterases. Dietary administration of clofibric acid (0.067-0.22%) reduces serum cholesterol, phospholipid, and triglyceride levels in rats. It decreases glutamate oxaloacetate transaminase (GOT) levels and increases glutamate pyruvate transaminase (GPT) and lactate dehydrogenase (LDH) levels, markers of xenobiotic stress, in the plasma of carp (C. carpio) when administered in tank water at a concentration of 10 µg L. Clofibric acid has been found in wastewater effluent.
17(R)-Resolvin D1 (17(R)-RvD1) is an aspirin-triggered epimer of RvD1 that equivalently inhibits human polymorphonuclear leukocyte migration across the endothelium (EC50= ~30 nM), a precursor to acute inflammation. Unlike RvD1, it resists rapid degradation by eicosanoid oxidoreductases. In a mouse peritonitis model, 17(R)-RvD1 dose-dependently reduces leukocyte infiltration, achieving up to a 35% decrease with a 100 ng dose. Additionally, its methyl ester derivative, designed to enhance its pharmacokinetic and distribution properties as a more lipophilic prodrug, can be converted back into the active acid form by intracellular esterases.