Category: 58081-05-3

Synthetic Route of C4H6O3. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about Diastereoselective Synthesis of C2′-Fluorinated Nucleoside Analogues Using an Acyclic Approach. Author is Dostie, Starr; Prevost, Michel; Mochirian, Philippe; Tanveer, Kashif; Andrella, Nicholas; Rostami, Ariana; Tambutet, Guillaume; Guindon, Yvan.

Nucleoside analogs bearing a fluorine in the C2′-position have been synthesized by SN2-like cyclizations of acyclic thioaminal precursors. This strategy provides access to two scaffolds, D-1′,2′-cis-thiofuranosides and D-1′,2′-trans-furanosides, which are difficult to generate using the standard approach for nucleoside synthesis. The addition of silylated nucleobases onto model C2-fluorinated dithioacetal substrates resulted in 1,2-syn diastereoselectivity, which is consistent with the C2-F and S-alkyl moiety being in close proximity. A new series of analogs bearing a C3′ all-carbon quaternary center along with a C2′-F atom have also been synthesized using this approach and are being investigated as potential antimetabolites.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 58081-05-3, is researched, Molecular C4H6O3, about Synthesis of ligands related to the Vibrio cholerae O-specific antigen. 15. Synthesis of some analogs of the methyl α-glycoside of the presumed antigenic determinant of the O-specific polysaccharide of Vibrio cholerae O:1, serotype Ogawa, the main research direction is deoxyglycero tetronamidomethylmannopyranoside glycoside analog preparation; Vibrio cholerae polysaccharide antigenic determinant.Product Details of 58081-05-3.

The following analogs of the title determinant, Me 4,6-dideoxy-4-(3-deoxy-L-glycero-tetronamido)-2-O-methyl-α-D-mannopyranoside, have been prepared: Me 3,4,6-trideoxy-4-(3-deoxy-L-glycero-tetronamido)-2-O-methyl-α-D-mannopyranoside, Me 4,6-dideoxy-4-(4-hydroxybutyramido)-2-O-methyl-α-D-mannopyranoside, Me 4,6-dideoxy-4-(3,4-dideoxy-L-glycero-tetronamido)-2-O-methyl-α-D-mannopyranoside, Me 1 4,6-dideoxy-4-(3-deoxy-D-glycero-tetronamido)-2-O-methyl-α-D-mannopyranoside, Me 4,6-dideoxy-4-(2-deoxy-L-glycero-tetronamido)-2-O-methyl-α-D-mannopyranoside, Me 4-acetamido–4,6-dideoxy-2-O-methyl-α-D-mannopyranoside, Me 4,6-dideoxy-4-(3-deoxy-L-glycero-tetronamido)-2-O-ethyl-α-D-mannopyranoside, and Me 4,6-dideoxy-4-(3-deoxy-L-glycero-tetronamido)-2-O-propyl-α-D-mannopyranoside.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Application of 58081-05-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about (R)-Ethyl 4-tert-butoxy-3-hydroxybutanoate, a versatile chiral building block for EPC (enantiomerically pure compound) syntheses, by yeast reduction of ethyl 4-tert-butoxy-3-oxobutanoate. Author is Seebach, Dieter; Eberle, Martin.

Treatment of ROCH2COCH2CO2R1 (I; R = Me3C, R1 = Et) with baker’s yeast and sucrose in H2O at 28° for 4 days gave 72% (R)-ROCH2CH(OH)CH2CO2R1 (II; R = Me3C, R1 = Et) in 97% enantiomeric excess. Similar treatment of I (R = Me3C, R1 = Me; R = PhCH2, R1 = Et) gave 70 and 58% II in 82 and 56% enantiomeric excess resp.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis of nature product kinsenoside analogues with anti-inflammatory activity, published in 2021-01-01, which mentions a compound: 58081-05-3, Name is (R)-4-Hydroxydihydrofuran-2(3H)-one, Molecular C4H6O3, Formula: C4H6O3.

Kinsenoside (I) is a major bioactive component in herbal medicines that possesses a broad range of pharmacol. functions. Goodyeroside A (II), an epimer of kinsenoside, remains less explored. In this report, the authors chem. synthesized kinsenoside, goodyeroside A and their analogs with glycan variation, chirality inversion at chiral center(s), and bioisosteric replacement of lactone with lactam. Among these compounds, goodyeroside A and its mannosyl counterpart III demonstrated superior anti-inflammatory efficacy. Furthermore, goodyeroside A was found to suppress inflammation through inhibiting the NF-κB signal pathway effectively. The structure-activity relationship is also explored for further development of more promising kinsenoside analogs as drug candidates.

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Pyrroline – Wikipedia,
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Recommanded Product: 58081-05-3. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about Structural and stereoisomeric specificity of serum-borne sugar acids related to feeding control by rats.

Specificity of chem. structures and stereoisomers among serum-borne short-chain organic acids in rats were assessed for their effects on feeding behavior and humoral factors by infusion into the rat 3rd cerebroventricle. Infusion of glyceric acid (1.0 μmol), 3,4-dihydroxybutanoic acid γ-lactone (3,4-DB), or 3,4,5-trihydroxypentanoic acid γ-lactone (2.50 μmol) immediately before the dark phase decreased food intake for, at most, 24 h. These acids did not affect drinking or ambulation. Initial feeding, not necessarily accompanied by periprandial drinking, was induced after infusion of 2,4-dihydroxy-butanoic acid γ-lactone, 2,4,5-trihydroxypentanoic acid γ-lactone (2,4,5-TP), or exogenous 2,4,5,6-tetrahydroxyhexanoic acid γ-lactone (2.50 μmol) in the light phase. Of these acids, 3,4-DB most potently suppressed and 2,4,5-TP most potently enhanced feeding. Of these, the 2S,4S-isomer and the 3S-isomer were the most potent of 2,4,5-TP and 3,4-DB, resp. Only the 2S,4S-isomer of 2,4,5-TP induced hypoglycemia with hyperinsulinemia, whereas opposite effects were produced by the 3S-isomer of 3,4-DB. The positions of the hydroxyl groups on 4-butanolide and the S- and S,S-stereoisomers are important in modulating food intake through the hypothalamus.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about Stereoselective Cobalt-Catalyzed Cross-Coupling Reactions of Arylzinc Chlorides with α-Bromolactones and Related Derivatives, the main research direction is arylated lactone diastereoselective synthesis coupling arylzinc chloride bromolactone; protected aldol diastereoselective synthesis coupling arylzinc chloride bromolactone.Recommanded Product: (R)-4-Hydroxydihydrofuran-2(3H)-one.

α-Bromolactones bearing a substituent in the β-position undergo a highly trans-diastereoselective arylation with arylzinc chlorides in the presence of 10-20% CoCl2 and 10-20% PPh3 in THF under mild conditions (25°C, 16 h) leading to optically enriched α-arylated lactones and protected aldol products (99% ee) in 52-96% yield. The synthetic utility of this arylation was demonstrated by the stereoselective preparation of an artificial rotenoid MOM-protected munduserol derivative

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 58081-05-3, is researched, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3Journal, Tetrahedron Letters called Structure determination and synthesis of a new cerebroside isolated from the traditional Chinese medicine Typhonium giganteum Engl., Author is Chen, Xuesong; Wu, Yu-Lin; Chen, Dihua, the main research direction is cerebroside Typhonium structure; medicinal plant typhoniside structure.Name: (R)-4-Hydroxydihydrofuran-2(3H)-one.

A new cerebroside, typhoniside A (I), with C18-4,8-sphingadienine as the long-chain base, has been isolated from the traditional Chinese medicine Typhonium giganteum Engl., and its structure was determined by 2D-NMR and MS methods. It was then synthesized using D-xylose and ascorbic acid as the chiral starting materials.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Electric Literature of C4H6O3. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one, is researched, Molecular C4H6O3, CAS is 58081-05-3, about A novel total synthesis of kinsenoside and goodyeroside A relying on the efficient reaction of the chiral 2(5H)-furanones. Author is Zhang, Xiang; Huang, Hai-hong; Chen, Qing-hun.

A new total synthesis of the bioactive compounds, kinsenoside (I; R1 = H) and goodyeroside A (II; R2 = H), has been accomplished from readily available starting materials. The chiral 2(5H)-furanone III and its enantiomer IV were employed as the key chiral intermediates to construct the chiral glycosides V and VI with the appropriate stereochem. The spectral data of the target compounds and their acetylated derivatives (I; R1 = Ac) and (II; R2 = Ac) are identical with those of the natural and corresponding acetylated products.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Synthesis of nature product kinsenoside analogues with anti-inflammatory activity, published in 2021-01-01, which mentions a compound: 58081-05-3, Name is (R)-4-Hydroxydihydrofuran-2(3H)-one, Molecular C4H6O3, Synthetic Route of C4H6O3.

Kinsenoside (I) is a major bioactive component in herbal medicines that possesses a broad range of pharmacol. functions. Goodyeroside A (II), an epimer of kinsenoside, remains less explored. In this report, the authors chem. synthesized kinsenoside, goodyeroside A and their analogs with glycan variation, chirality inversion at chiral center(s), and bioisosteric replacement of lactone with lactam. Among these compounds, goodyeroside A and its mannosyl counterpart III demonstrated superior anti-inflammatory efficacy. Furthermore, goodyeroside A was found to suppress inflammation through inhibiting the NF-κB signal pathway effectively. The structure-activity relationship is also explored for further development of more promising kinsenoside analogs as drug candidates.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 58081-05-3, is researched, Molecular C4H6O3, about Single-step conversion of chiral carnitine and derivatives into (S)- and (R)-β-substituted γ-butyrolactones, the main research direction is butyrolactone preparation; carnitine cyclocondensation.Safety of (R)-4-Hydroxydihydrofuran-2(3H)-one.

An efficient 1-step conversion of chiral carnitine and its derivatives into stereoisomerically pure (S)- and (R)-β-substituted γ-butyrolactones by cyclocondensation is described. (S)- or (R)-carnitine and (R)-aminocarnitine give β-hydroxy-γ-butyrolactone and β-amino-γ-butyrolactone in 82 and 77% yield, resp., with retention. (R)-(acetylamino)carnitine gives (R)-β-acetylamino-γ-butyrolactone in 90% yield, while (R)-acetylcarnitine gives 2(5H)-furanone under the same reaction conditions in 77% yield via cyclization and subsequent elimination. (R)-N-benzyloxycarnitinamide gives a mixture of pyrrolidinone (11% yield) and furanoyl imidate (50% yield) derivatives

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Reference:
Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem