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Stereoselective

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By Targets:	5-HT Receptor (2) Autophagy (2) Biochemical Assay Reagents (1) Cholecystokinin Receptor (2) DNA/RNA Synthesis (1) Drug Metabolite (2) Glutathione S-transferase (1) iGluR (1) mAChR (1) Monoamine Oxidase (2) Parasite (2) Reverse Transcriptase (1) Toll-like Receptor (TLR) (2)
By Research Areas:	Cancer (3) Cardiovascular Disease (1) Infection (3) Inflammation/Immunology (2) Metabolic Disease (3) Neurological Disease (9)
Oligonucleotides:	Nucleoside Phosphoramidites (1)

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Natural
Products

Isotope-Labeled Compounds

Oligonucleotides

Cat. No.	Product Name	Target	Research Areas	Chemical Structure

HY-105545A

Levetimide	mAChR	Neurological Disease
Levetimide is a potent and stereoselective inhibitor of [ ³H](+)pentazocine binding, with a K_i of 2.2 nM .

HY-W076971

Ethyl pivaloylacetate	Others	Others
Ethyl pivaloylacetate is a β-ketoester. Ethyl pivaloylacetate can be uesd as the substrate to evaluate the activity and stereoselectivity of the ketoreductase tool-box .

HY-117580

16α-Hydroxyprednisolone OH-PRED	Drug Metabolite	Inflammation/Immunology
16α-Hydroxyprednisolone is a stereoselective metabolite of the 22(R) epimer of the glucocorticoid budesonide via cytochrome P450 3A (CYP3A) enzymes .

HY-N9022

(S)-1-(4-Hydroxy-2,2-dimethylchroman-6-yl)ethanone	Others	Others
(S)-1-(4-Hydroxy-2,2-dimethylchroman-6-yl)ethanone is an enantiopure chiral alcohol. Stereoselective reduction of prochiral ketones is studied by using both cell cultures and wild tissues of various endemic plant species .

HY-10572A

(R)-Efavirenz (R)-DMP 266; (R)-EFV; (R)-L-743726	Reverse Transcriptase	Infection Metabolic Disease
(R)-Efavirenz is a non-nucleoside reverse transcriptase inhibitor that acts by non-competitive inhibition of the viral enzyme. (R)-Efavirenz can be metabolized by CYP2B6 to 8-hydroxyefavirenz in a highly stereoselective manner. (R)-Efavirenz is promising to be a useful probe for the CYP2B6 active site and catalytic mechanisms .

HY-117734

PYD-106	iGluR	Neurological Disease
PYD-106 is a stereoselective pyrrolidinone (PYD) positive allosteric modulator for GluN2C-containing NMDA receptors. PYD-106 increases opening frequency and open time of single channel currents activated by maximally effective concentrations of agonist but only has modest effects on glutamate and glycine EC₅₀. PYD-106 selectively enhances the responses of diheteromeric GluN1/GluN2C receptors but not triheteromeric GluN1/GluN2A/GluN2C receptors .

HY-22385

Salsolidine	Monoamine Oxidase	Neurological Disease
Salsolidine is a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A inhibitor.

HY-22385A

Salsolidine hydrochloride	Monoamine Oxidase	Neurological Disease
Salsolidine hydrochloride, a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A (monoamine oxidase A) inhibitor.

HY-B0204B

(-)-Pimobendan (-)-UD-CG115	Others	Cardiovascular Disease
(-)-Pimobedan is an isomer of pimobedan. It has the property of stereoselective partitioning or distribution into erythrocytes. The clearance of (-)-pimobedan from erythrocytes is significantly lower than that of (+)-pimobedan, which is entirely due to its stereoselective distribution into erythrocytes. This stereoselective property of (-)-pimobedan may explain the phenomenon previously reported that it produces a 1.5-fold greater contractile force than the (+)-isomer in detergent-treated myocardial specimens of guinea pigs and dogs. These properties suggest that (-)-pimobedan may have unique advantages in terms of in vivo distribution and pharmacological action, which may have important implications for its clinical use.

HY-W570890

2'-O-MOE-5-Me-C(Bz)	DNA/RNA Synthesis	Others
2'-O-MOE-5-Me-C (Bz) is a nucleotide for the stereoselective synthesis of nucleoside alkyl phosphonates .

HY-105236

(Rac)-Enadoline (Rac)-CI-977 free base	Others	Neurological Disease
(Rac)-Enadoline ((Rac)-CI-977 free base) is a selective K-opioid receptor agonist that stereoselectively antagonizes clonic seizures induced by slow intravenous injection of N-methyl-DL-aspartate in mice .

HY-N12970

14S(15R)-EET	Others	Others
14S(15R)-EET is an endogenous epoxytrienoic acid derivative that mainly exists in rat organs. By studying its metabolic process, it was found that its stereoselective hydration and formation of chiral diols were significantly affected by epoxidase. Different 14,15-EET enantiomers showed different regions and stereochemistry of hydration reactions, among which 14(R),15(S)-EET showed specific hydration for C15. These findings reveal the important role of epoxidase in the metabolism of endogenous EETs, and the differences in enzyme affinity and reaction rate for individual EET enantiomers may lead to their stereoselective metabolism .

HY-138793

2-(2,6-Dioxopiperidin-3-yl)phthalimidine EM-12	Others	Cancer
2-(2,6-Dioxopiperidin-3-yl)phthalimidine (EM-12), a teratogenic Thalidomide analogue, is more active than Thalidomide and is much more stable for hydrolysis. 2-(2,6-Dioxopiperidin-3-yl)phthalimidine enhances 1,2-dimethylhydrazine-induction of rat colon adenocarcinomas .

HY-B0352A

(S)-Mirtazapine (S)-Org3770; (S)-6-Azamianserin	5-HT Receptor	Neurological Disease
(S)-Mirtazapine ((S)-Org3770) is a S(+)-enantiomer of Mirtazapine with pronociceptive properties in an animal model of acute thermal nociception. (S)-Mirtazapine is a stereoselective 5-HT₂ receptor antagonist. (S)-Mirtazapine is metabolized by CYP2D6 and CYP1A2 .

HY-117580S

16α-Hydroxyprednisolone-d3 OH-PRED-d₃	Drug Metabolite	Inflammation/Immunology
16α-Hydroxyprednisolone-d₃ is the deuterium labeled 16α-Hydroxyprednisolone. 16α-Hydroxyprednisolone is a stereoselective metabolite of the 22(R) epimer of the glucocorticoid budesonide via cytochrome P450 3A (CYP3A) enzymes[1][2].

HY-158301

MY-1B	Others	Others
MY-1B is a covalent inhibitor of the RNA Methyltransferase NSUN2 (IC₅₀: 1.3 μM). MY-1B stereoselectively ligands active-site cysteine residues (C271) of NSUN2, and can be used to study the specific function of NSUN2 .

HY-106840A

L-365260 hemihydrate 1 Publications Verification	Cholecystokinin Receptor	Neurological Disease Metabolic Disease
L-365260 hemihydrate is an orally active and selective antagonist of non-peptide gastrin and brain cholecystokinin receptor (CCK-B), with K_is of 1.9 nM and 2.0 nM, respectively. L-365260 hemihydrate interacts in a stereoselective and competitive manner with guinea pig stomach gastrin and brain CCK receptors .

HY-B0352AS

(S)-Mirtazapine-d3 (S)-Org3770 d₃; (S)-6-Azamianserin d₃	5-HT Receptor	Neurological Disease
(S)-Mirtazapine-d₃ is a deuterium labeled (S)-Mirtazapine. (S)-Mirtazapine is a S(+)-enantiomer of Mirtazapine with pronociceptive properties in an animal model of acute thermal nociception.(S)-Mirtazapine is a stereoselective 5-HT2 receptor antagonist. (S)-Mirtazapine is metabolized by CYP2D6 and CYP1A2[1].

HY-N13080

3-Oxo-bufalin	Others	Cancer
3-Oxo-bufalin is an active compound that can be isolated from cultured toad liver tissue. 3-Oxo-bufalin can be produced through a metabolic pathway, and it is a metabolite of Bufalin (HY-N0877) catalyzed by the stereoselective 3β-dehydrogenase. Bufalin is a Na+/K+-ATPase inhibitor and has anti-tumor activity .

HY-135811

Desethyl chloroquine	Parasite Toll-like Receptor (TLR) Autophagy	Infection
Desethyl chloroquine is a major desethyl metabolite of Chloroquine. Chloroquine diphosphate is an inhibitor of autophagy and toll-like receptors (TLRs). Desethyl chloroquine possesses antiplasmodic activity .

HY-135811A

Desethyl chloroquine diphosphate 1 Publications Verification	Parasite Toll-like Receptor (TLR) Autophagy	Infection
Desethyl chloroquine diphosphate is a major desethyl metabolite of Chloroquine. Chloroquine diphosphate is an inhibitor of autophagy and toll-like receptors (TLRs). Desethyl chloroquine diphosphate possesses antiplasmodic activity .

HY-106840

L-365260 1 Publications Verification	Cholecystokinin Receptor	Neurological Disease Metabolic Disease
L-365260 is an orally active and selective antagonist of non-peptide gastrin and brain cholecystokinin receptor (CCK-B), with K_is of 1.9 nM and 2.0 nM, respectively. L-365260 interacts in a stereoselective and competitive manner with guinea pig stomach gastrin and brain CCK receptors. L-365260 can enhance Morphine analgesia and prevents Morphine tolerance .

HY-N0548

α-Angelica lactone 2 Publications Verification	Glutathione S-transferase	Cancer
α-Angelica lactone is a naturally occurring anticarcinogen and an vinylogous nucleophile. α-Angelica lactone can give the chiral δ-amino γ,γ-disubstituted butenolide carbonyl derivatives and exhibitselectrophilic trapping at the γ-carbon. α-Angelica lactone exerts strong chemoprotective effects by selective enhancement of glutathione-S-thansferase (GST) and UDP-glucononosyltransferase (UGT) detoxification enzymes .

HY-W010507

(R)-Methyl 3-hydroxybutanoate Methyl (R)-(-)-3-hydroxybutyrate	Biochemical Assay Reagents	Others
(R)-Methyl 3-hydroxybutanoate, (R)-Methyl 3-hydroxybutanoate is an enantiomer, from the perspective of the methyl (-CH3) group, the hydroxyl (-OH) group on the third carbon atom The group faces to the right, a colorless transparent liquid, soluble in organic solvents such as ethanol and ether, insoluble in water, (R)-Methyl 3-hydroxybutanoate is usually used to synthesize various organic compounds (including drugs, agricultural chemicals and flavoring agents) It can also be used as a chiral auxiliary in asymmetric synthetic reactions involving the formation of chemical bonds in a stereoselective manner.

Cat. No.	Product Name	Type

HY-W010507

(R)-Methyl 3-hydroxybutanoate Methyl (R)-(-)-3-hydroxybutyrate	Drug Delivery
(R)-Methyl 3-hydroxybutanoate, (R)-Methyl 3-hydroxybutanoate is an enantiomer, from the perspective of the methyl (-CH3) group, the hydroxyl (-OH) group on the third carbon atom The group faces to the right, a colorless transparent liquid, soluble in organic solvents such as ethanol and ether, insoluble in water, (R)-Methyl 3-hydroxybutanoate is usually used to synthesize various organic compounds (including drugs, agricultural chemicals and flavoring agents) It can also be used as a chiral auxiliary in asymmetric synthetic reactions involving the formation of chemical bonds in a stereoselective manner.

(R)-Methyl 3-hydroxybutanoate

Methyl (R)-(-)-3-hydroxybutyrate

Drug Delivery

(R)-Methyl 3-hydroxybutanoate, (R)-Methyl 3-hydroxybutanoate is an enantiomer, from the perspective of the methyl (-CH3) group, the hydroxyl (-OH) group on the third carbon atom The group faces to the right, a colorless transparent liquid, soluble in organic solvents such as ethanol and ether, insoluble in water, (R)-Methyl 3-hydroxybutanoate is usually used to synthesize various organic compounds (including drugs, agricultural chemicals and flavoring agents) It can also be used as a chiral auxiliary in asymmetric synthetic reactions involving the formation of chemical bonds in a stereoselective manner.

Cat. No.	Product Name	Category	Target	Chemical Structure

HY-W076971

Ethyl pivaloylacetate	Structural Classification other families Classification of Application Fields Ketones, Aldehydes, Acids Source classification Other Diseases Plants Disease Research Fields	Others
Ethyl pivaloylacetate is a β-ketoester. Ethyl pivaloylacetate can be uesd as the substrate to evaluate the activity and stereoselectivity of the ketoreductase tool-box .

HY-N0548

α-Angelica lactone 2 Publications Verification	Natural Products Classification of Application Fields Source classification Dicerothamnus rhinocerotis Plants Umbelliferae Disease Research Fields Cancer	Glutathione S-transferase
α-Angelica lactone is a naturally occurring anticarcinogen and an vinylogous nucleophile. α-Angelica lactone can give the chiral δ-amino γ,γ-disubstituted butenolide carbonyl derivatives and exhibitselectrophilic trapping at the γ-carbon. α-Angelica lactone exerts strong chemoprotective effects by selective enhancement of glutathione-S-thansferase (GST) and UDP-glucononosyltransferase (UGT) detoxification enzymes .

HY-N9022

(S)-1-(4-Hydroxy-2,2-dimethylchroman-6-yl)ethanone	Natural Products Source classification Plants Compositae Tephrosia purpurea (L.) Pers.	Others
(S)-1-(4-Hydroxy-2,2-dimethylchroman-6-yl)ethanone is an enantiopure chiral alcohol. Stereoselective reduction of prochiral ketones is studied by using both cell cultures and wild tissues of various endemic plant species .

HY-22385

Salsolidine	Alkaloids Animals Source classification Isoquinoline Alkaloids	Monoamine Oxidase
Salsolidine is a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A inhibitor.

HY-22385A

Salsolidine hydrochloride	Alkaloids other families Source classification Plants Isoquinoline Alkaloids	Monoamine Oxidase
Salsolidine hydrochloride, a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A (monoamine oxidase A) inhibitor.

HY-N12970

14S(15R)-EET	Structural Classification Ketones, Aldehydes, Acids Source classification Endogenous metabolite	Others
14S(15R)-EET is an endogenous epoxytrienoic acid derivative that mainly exists in rat organs. By studying its metabolic process, it was found that its stereoselective hydration and formation of chiral diols were significantly affected by epoxidase. Different 14,15-EET enantiomers showed different regions and stereochemistry of hydration reactions, among which 14(R),15(S)-EET showed specific hydration for C15. These findings reveal the important role of epoxidase in the metabolism of endogenous EETs, and the differences in enzyme affinity and reaction rate for individual EET enantiomers may lead to their stereoselective metabolism .

HY-N13080

3-Oxo-bufalin	Structural Classification Microorganisms Source classification Steroids	Others
3-Oxo-bufalin is an active compound that can be isolated from cultured toad liver tissue. 3-Oxo-bufalin can be produced through a metabolic pathway, and it is a metabolite of Bufalin (HY-N0877) catalyzed by the stereoselective 3β-dehydrogenase. Bufalin is a Na+/K+-ATPase inhibitor and has anti-tumor activity .

Cat. No.	Product Name	Chemical Structure

HY-B0352AS

(S)-Mirtazapine-d3
(S)-Mirtazapine-d₃ is a deuterium labeled (S)-Mirtazapine. (S)-Mirtazapine is a S(+)-enantiomer of Mirtazapine with pronociceptive properties in an animal model of acute thermal nociception.(S)-Mirtazapine is a stereoselective 5-HT2 receptor antagonist. (S)-Mirtazapine is metabolized by CYP2D6 and CYP1A2[1].

HY-117580S

16α-Hydroxyprednisolone-d3
16α-Hydroxyprednisolone-d₃ is the deuterium labeled 16α-Hydroxyprednisolone. 16α-Hydroxyprednisolone is a stereoselective metabolite of the 22(R) epimer of the glucocorticoid budesonide via cytochrome P450 3A (CYP3A) enzymes[1][2].

2'-O-MOE-5-Me-C(Bz)		Nucleoside Phosphoramidites
2'-O-MOE-5-Me-C (Bz) is a nucleotide for the stereoselective synthesis of nucleoside alkyl phosphonates .

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Stereoselective

Inhibitors & Agonists

Biochemical Assay Reagents

NaturalProducts

Isotope-Labeled Compounds

Oligonucleotides

Natural
Products