epimer

Negative control for LC 2.

Tacrolimus anhydrous 8-epimer is a new l-pipecolic acid macrolide lactone, an important immunosuppressive drug that blocks T cell proliferation in vitro by inhibiting the generation of several lymphokines, especially IL-2.

3 Hydroxy Midostaurin Epimer 1-d5 is a deuterated compound of 3 Hydroxy Midostaurin Epimer 1. 3 Hydroxy Midostaurin Epimer 1 has a CAS number of 945260-14-0.

3 Hydroxy Midostaurin Epimer 2-d5 is a deuterated compound of 3 Hydroxy Midostaurin Epimer 2.3 Hydroxy Midostaurin Epimer 2 has a CAS number of 155848-20-7.

Aldose 1-epimerase (mutarotases), an essential enzyme for carbohydrate metabolism, facilitates the interconversion between α- and β-anomers of hexose sugars, including glucose and galactose. This enzyme plays a vital role in normal carbohydrate metabolism and the synthesis of complex oligosaccharides [1].

D-Galactose is a naturally occurring hexose and a C-4 epimer of glucose. It can combine with glucose to form lactose and is commonly used to establish animal models of aging.

16α-Hydroxyprednisolone is a stereoselective metabolite of the [22(R)] epimer of the glucocorticoid budesonide.

(-)-Gallocatechin ((−)-GC) has free radical scavenging ability and moderate affinity to the human cannabinoid receptor.

(3S,5S)-Pitavastatin calcium is the 3-epimer of Pitavastatin which is a potent HMG-CoA reductase inhibitor.

Dithioerythritol (DTE), a sulfur-containing sugar derivative of the 4-carbon monosaccharide erythrose, is an epimer of dithiothreitol (DTT).

WIN 5063-3 is the enantiomeric analog of the antimicrobial Thiamphenicol.

3-epi-25-hydroxy Vitamin D3 is the C-3 epimer of 25-hydroxy vitamin D3. Dietary administration of 3-epi-25-hydroxy vitamin D3 (0.5 and 1 IU g) decreases levels of serum parathyroid hormone (PTH) in male, but not female, weanling rats.

Resolvins are a family of potent lipid mediators derived from both eicosapentaenoic acid and docosahexaenoic acid.[1] In addition to being anti-inflammatory, resolvins promote the resolution of the inflammatory response back to a non-inflamed state.[2] Resolvin D1 is produced physiologically from the sequential oxygenation of DHA by 15- and 5-lipoxygenase.[1] 17(R)-RvD1 is an aspirin-triggered epimer of RvD1 that reduces human polymorphonuclear leukocyte (PMN) transendothelial migration, the earliest event in acute inflammation, with equipotency to RvD1 (EC50 = ~30 nM).[3] 17(R)-RvD1 exhibits a dose-dependent reduction in leukocyte infiltration in a mouse model of peritonitis with maximal inhibition of ~35% at a 100 ng dose.[3] In contrast to RvD1, the aspirin-triggered form resists rapid inactivation by eicosanoid oxidoreductases. Analytical and biological comparisons of synthetic 17(R)-RvD1 with endogenously derived 17(R)-RvD1 have confirmed its identity as matching the natural product.[4]

17(R)-Protectin D1 is an aspirin-triggered epimer of the specialized pro-resolving mediator protectin D1 .1It decreases leukotriene B4-induced transendothelial migration of human polymorphonuclear (PMN) neutrophils when used at concentrations ranging from 0.1 to 10 nM. 17(R)-Protectin D1 (0.01-10 ng) reduces the recruitment of neutrophils in a mouse model of TNF-α-induced peritonitis. 1.Serhan, C.N., Fredman, G., Yang, R., et al.Novel proresolving aspirin-triggered DHA pathwayChem. Biol.18(18)976-987(2011)

11β-PGE2 is the C-11 epimer of PGE2. It is a moderate inhibitor of PGE2 binding to rat hypothalamic membranes with a Ki value of 53 nM.[1] 11β-PGE2 also stimulates bone resorption in rats at concentrations of 10-8 to 10-6 M which is similar to PGE2.2 11β-PGE2 inhibits PGE2 binding to the prostaglandin transporter protein with a Ki of 56 nM.[3] .

15(R)-Pinane thromboxane A2 is the (R)-epimer of pinane thromboxane A2 . 15(R)-PTA2 does not inhibit collagen-induced platelet aggregation (IC50s = 120-130 μM). It does not affect gastric tone in isolated rat gastric fundus when used at concentrations of 0.5 or 1.5 μg/ml and is less effective than PTA2 at inhibiting prostaglandin-induced contraction of isolated rat stomach muscle.

Chlortetracycline is an analog of tetracycline , a broad spectrum antibiotic. In addition to its actions against microorganisms, chlortetracycline suppresses inflammation by inhibiting neutrophil action and other aspects of the innate immune response. 4-epi-Chlortetracycline is an epimer of chlortetracycline.

7-epi Maresin 1 is the inactive 7(S) epimer of Maresin 1 , which contains a 7(R) hydroxyl group. It can be used as an experimental negative control.

5(S),12(S)-DiHETE is a natural bioactive lipid derived from arachidonic acid . It is synthesized by glycogen-induced rabbit peritoneal polymorphonuclear leukocytes (PMNLs) incubated with AA. 5(S),12(S)-DiHETE can be produced by successive oxygenation of AA by 5-lipoxygenase (5-LO) in platelets and 12-LO in leukocytes. It can also be synthesized from 12(S)-HETE by 5-LO, in the presence of 5-LO activating protein (FLAP), activated with calcium ionophore. 5(S),12(S)-DiHETE is an epimer of leukotriene B4 that is weakly chemotactic for PMNL.

Epitetracycline is an epimer of the antibiotic tetracycline . Epimers of tetracycline form without catalysis and are considered degradation products. Epitetracycline has decreased activity as an antibiotic or a Tet repressor effector but may have stronger toxic effects in animals.

D-chiro-Inositol (D-(+)-CHIRO-INOSITOL) is an epimer of myo-inositol that is found in certain mammalian glycosylphosphatidylinositol protein anchors and inositol phosphoglycans possessing insulin-like bioactivity.

Ganorbiformin B, a lanostane triterpenoid, belongs to the same structural class as ganoderic acids, sharing the lanostane skeleton. It is the C-3 epimer of ganoderic acid T, known for its potent antimycobacterial activity against Mycobacterium tuberculosis H37Ra [1].

S-30-Hydroxygambogic acid, a polyprenylated xanthone epimer isolated from the gamboges of Garcinia hanburyi, exhibits cytotoxicity against Human Leukemia K562 cell lines with IC50 values of 4.49 μM for K562 R and 3.61 μM for K562 S. This compound is utilized in cancer research [1].

R-30-Hydroxygambogic acid, a polyprenylated xanthone epimer isolated from the gamboge of Garcinia hanburyi, exhibits cytotoxicity against human leukemia K562 cell lines, with IC50 values of 2.89 μM for the resistant strain (K562 R) and 1.27 μM for the sensitive strain (K562 S). This compound is utilized in cancer research [1].