Category: 52079-23-9

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A stereoselective route to (1S, 8aS)-1-hydroxyindolizidine is reported herein that incorporates as a pivotal step the diastereoselective addition of the dianion of 4-(phenylsulfonyl)butanoic acid (4-PSBA) to a chiral alpha-benzyloxymethyl imine.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Electric Literature of 52079-23-9, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 52079-23-9, Name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone,introducing its new discovery.

A silylation-based kinetic resolution has been developed for alpha-hydroxy lactones and lactams employing the chiral isothiourea catalyst (-)-benzotetramisole and triphenylsilyl chloride as the silyl source. The system is more selective for lactones than lactams, and selectivity factors up to 100 can be achieved utilizing commercially available reagents.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Application of 52079-23-9, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 52079-23-9, Name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone,introducing its new discovery.

A series of benzoxazinones has been synthesized and tested for PPARgamma agonist activity. Synthetic approaches were developed to provide either racemic or chiral compounds. In vitro functional potency could be measured through induction of the aP2 gene, a target of PPARgamma. These studies revealed that compounds with large aliphatic chains at the nitrogen of the benzoxazinone were the most potent. Substitution of the chain was tolerated and in many cases enhanced the in vitro potency of the compound. Select compounds were further tested for metabolic stability, oral bioavailability in rats, and efficacy in db/db mice after 11 days of dosing. In vivo analysis with 13 and 57 demonstrated that the series has potential for the treatment of type 2 diabetes.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Reference of 52079-23-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 52079-23-9, Name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, molecular formula is C4H6O3. In a Article，once mentioned of 52079-23-9

The first total synthesis of the lipid mediator MaR1n-3 DPA (5) has been achieved in 12% overall yield over 11 steps. The stereoselective preparation of 5 was based on a Pd-catalyzed sp3-sp3 Negishi cross-coupling reaction and a stereocontrolled Evans-Nagao acetate aldol reaction. LC-MS/MS results with synthetic material matched the biologically produced 5. This novel lipid mediator displayed potent pro-resolving properties stimulating macrophage efferocytosis of apoptotic neutrophils.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Application of 52079-23-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 52079-23-9, Name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, molecular formula is C4H6O3. In a Patent，once mentioned of 52079-23-9

LACTAMS AS INHIBITORS OF ROCK

The present invention provides compounds of Formula (I): or stereoisomers, tautomers, or pharmaceutically acceptable salts thereof, wherein all the variables are as defined herein. These compounds are selective ROCK inhibitors. This invention also relates to pharmaceutical compositions comprising these compounds and methods of treating cardiovascular, smooth muscle, oncologic, neuropathologic, autoimmune, fibrotic, and/or inflammatory disorders using the same.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

In heterogeneous catalysis, the catalyst is in a different phase from the reactants. Product Details of 52079-23-9, At least one of the reactants interacts with the solid surface in a physical process called adsorption in such a way. 52079-23-9, name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone. In an article，Which mentioned a new discovery about 52079-23-9

Synthesis and crystal structure of methyl 4,6-dideoxy-4-(3-deoxy-L-glycero-tetronamido)-2-O-methyl-alpha-D-mannopyranoside, the methyl alpha-glycoside of the terminal unit, and presumed antigenic determinant, of the O-specific polysaccharide of Vibrio cholerae O:1, serotype Ogawa

Methyl 4-azido-4,6-dideoxy-3-O-benzyl-alpha-D-mannopyranoside and its analogous 3-O-(4-methoxybenzyl) derivative were methylated and the 2-O-methyl derivatives formed were converted into methyl 4-amino-4,6-dideoxy-2-O-methyl-alpha-D-mannopyranoside.Reaction of the latter with 3-deoxy-L-glycero-tetronolactone gave the methyl glycoside of 4,6-dideoxy-4-(3-deoxy-L-glycero-tetranamido)-2-O-methyl-alpha-D-mannopyranose, the monosaccharide that is reported to be the terminal moiety of the O-specific polysaccharide of Vibrio cholerae O:1, serotype Ogawa.The unit cell packing of the compound, which crystallized as a monohydrate, differs from that of the previously described crystalline compound lacking the 2-O-methyl group.The unmethylated sugar is the terminal moiety of the O-specific polysaccharide of Vibrio cholerae O:1; serotype Inaba.The crystal structure of methyl 4,6-dideoxy-2-O-methyl-4-trifluoroacetamido-alpha-D-mannopyranoside is also described.Keywords: O-Polysaccharide; Vibrio cholerae O:1, serotype Ogawa; alpha-D-Mannopyranoside, methyl 4,6-dideoxy-4-(3-deoxy-L-glycero-teronamido)-2-O-methyl; Synthesis; Antigenic determinant

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. name: (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 52079-23-9

New naphthoquinone and monoterpenoid from Plumbago zeylanica

New naphthoquinone 2 and new monoterpenoid 3 were isolated from the stems of Plumbago zeylanica, and their structures were determined on the basis of 2D NMR spectroscopy. Absolute configuration of 3 was established by synthesis of its enantiomer. The new naphthoquinone 2 showed potent inhibitory activity against nuclear factor kappaB (NF-kappaB), equivalent to that of parthenolide, a known potent inhibitor of NF-kappaB.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 52079-23-9, name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, introducing its new discovery. COA of Formula: C4H6O3

Stereocontrolled synthesis of the C(1)-C(11) subunit of the Iejimalides

An enantioselective synthesis of the C(1)-C(11) subunit of the iejimalides has been accompished through a combination of an asymmetric Horner-Wadsworth-Emmons condensation and a chiral pool approach.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

Synthetic Route of 52079-23-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 52079-23-9, Name is (S)-(-)-alpha-Hydroxy-gamma-butyrolactone, molecular formula is C4H6O3. In a Article，once mentioned of 52079-23-9

Saponaceolides: Differential cytotoxicity and enantioselective synthesis of the right-hand lactone moiety

The enantioselective synthesis of the right-hand lactone moiety 5 of saponaceolide B, 2, is described. The mean graph profiles of 5 do not match the characteristic patterns of differential cytotoxicity of saponaceolides A, 1, and B, 2, in the NC1 human disease-oriented tumor screening panel, pointing out the need of the entire saponaceolide structure for maintaining the specificity and potency of the antitumor activity. En route to 5 several useful chiral building blocks, such as compounds 6, 10, 19, 27, and 28 were prepared.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem

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First asymmetric total syntheses of (-)-subincanadines A and B, skeletally rearranged pentacyclic monoterpenoid indole alkaloids in Aspidosperma subincanum

We achieved the first asymmetric total syntheses of novel Aspidosperma indole alkaloids, (-)-subincanadines A and B, which involve an intramolecular diastereoselective Pictet-Spengler cyclization and an intramolecular Nozaki-Hiyama-Kishi reaction as key steps in the total syntheses.

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Reference：
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem