Category: 58081-05-3

SDS of cas: 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 Production of (S)-4-chloro-3-hydroxybutyrate by microbial resolution using hydrolase from Rhizobium sp. DS-S-51. Author is Nakagawa, Atsushi; Suzuki, Takahiro; Kato, Ko; Shinmyo, Atsuhiko; Suzuki, Toshio.

(S)-4-Chloro-3-hydroxybutyrate (CHB) is essential for the synthesis of biol. and pharmacol. important compounds Rhizobium sp. DS-S-51 isolated from soil samples showed hydrolytic activity toward (R)-CHB in the racemate to (R)-3-hydroxy-γ-butyrolactone (HL) under a simple composition of the reaction. Residual (S)-CHB was obtained with high optical purity. The gene encoding the enzyme concerned, designated CHB hydrolase, was isolated from DS-S-51, and the gene was highly expressed in Escherichia coli JM109. When the resolution of racemic Me CHB (CHBM) as a substrate was performed using this recombinant cell, JM109 (pKK-R1), the hydrolytic activity was found to be 40-fold greater than that of DS-S-51, and the maximum concentration of the substrate added increased 2-fold. Moreover, (R)-HL was also obtained without decreasing the optical purity compared with that when (R)-CHBM was used as a substrate.

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COA of Formula: 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 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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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, Recommanded Product: (R)-4-Hydroxydihydrofuran-2(3H)-one.

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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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Tetrahedron called Pheromone synthesis. XXIV. Synthesis of optically active forms of ipsdienol and ipsenol. The pheromone components of Ips bark beetles, Author is Mori, K.; Takigawa, T.; Matsuo, T., which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Formula: C4H6O3.

(R)-(-)- And (S)-(+)-ipsdienol (I) [(R)-(-)- and (S)-(+)-Me2C:CH(OH)CH2C(:CH2)CH:CH2, resp.] were prepared from (R)-(+)-glyceraldehyde acetonide and (R)-(+)-malic acid, resp., via the intermediate epoxide II and its enantiomer, resp. I is the naturally occurring form of this pheromone. Treating (S)- and (R)-isobutylethylene oxide with CH2:C(MgCl)CH:CH2 gave 32 and 50% (S)-(-)- and (R)-(+)-Me2CHCH2CH(OH)CH2C(:CH2)CH:CH2, resp.

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Recommanded Product: 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 Chemoselective CaO-Mediated Acylation of Alcohols and Amines in 2-Methyltetrahydrofuran. Author is Pace, Vittorio; Hoyos, Pilar; Alcantara, Andres R.; Holzer, Wolfgang.

Calcium oxide is proposed as an innocuous acid scavenger for the chemoselective synthesis of amide- and ester-type compounds Although these mols. have wide spread applications in organic and pharmaceutical chem., and a large number of routes have been designed for their synthesis, the development of more efficient and environmentally friendly acylation strategies remains an ongoing challenge. The use of CaO allows for the stoichiometric acylation of primary alcs. in the presence of phenols or tertiary alcs.; amines can also be subjected to acylation reactions in the presence of hydroxyl groups. Chirality is obtained through acylation if the starting material is an optically pure alc. or if a chiral acylating agent is used. Furthermore, the use of 2-methyltetrahydrofuran (2-MeTHF), a more ecofriendly solvent, leads to maximized yields. This protocol is successfully applied to the synthesis of an interesting N-aryloxazolidin-2-one intermediate for the preparation of linezolid-type compounds

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Formula: C4H6O3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. 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. Author is Hofmayer, Maximilian S.; Sunagatullina, Alisa; Broesamlen, Daniel; Mauker, Philipp; Knochel, Paul.

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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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Research Support, N.I.H., Extramural, Research Support, Non-U.S. Gov’t, Chemistry & Biology (Oxford, United Kingdom) called Honaucins A-C, Potent Inhibitors of Inflammation and Bacterial Quorum Sensing: Synthetic Derivatives and Structure-Activity Relationships, Author is Choi, Hyukjae; Mascuch, Samantha J.; Villa, Francisco A.; Byrum, Tara; Teasdale, Margaret E.; Smith, Jennifer E.; Preskitt, Linda B.; Rowley, David C.; Gerwick, Lena; Gerwick, William H., which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Electric Literature of C4H6O3.

Honaucins A-C were isolated from the cyanobacterium Leptolyngbya crossbyana which was found overgrowing corals on the Hawaiian coast. Honaucin A consists of (S)-3-hydroxy-γ-butyrolactone and 4-chlorocrotonic acid, which are connected via an ester linkage. Honaucin A and its two natural analogs exhibit potent inhibition of both bioluminescence, a quorum-sensing-dependent phenotype, in Vibrio harveyi BB120 and lipopolysaccharide-stimulated nitric oxide production in the murine macrophage cell line RAW264.7. The decrease in nitric oxide production was accompanied by a decrease in the transcripts of several proinflammatory cytokines, most dramatically interleukin-1β. Synthesis of honaucin A, as well as a number of analogs, and subsequent evaluation in anti-inflammation and quorum-sensing inhibition bioassays revealed the essential structural features for activity in this chem. class and provided analogs with greater potency in both assays.

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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, Article, Research Support, Non-U.S. Gov’t, Molecules called Efficient synthesis of kinsenoside and goodyeroside A by a chemo-enzymatic approach, Author is Zhang, Yang; Xia, Yihong; Lai, Yongji; Tang, Fang; Luo, Zengwei; Xue, Yongbo; Yao, Guangmin; Zhang, Yonghui; Zhang, Jinwen, the main research direction is kinsenoside chemoenzymic synthesis; goodyeroside chemoenzymic synthesis.Electric Literature of C4H6O3.

Kinsenoside (1) and goodyeroside A (2), two naturally occurring stereoisomers with diverse biol. activities, have been synthesized efficiently by a chemo-enzymic approach with a total yield of 12.7%. The aglycons, (R)- and (S)-3-hydroxy-γ-butyrolactone, were prepared from d- and l-malic acid by a four-step chem. approach with a yield of 75%, resp. These butyrolactones were then successfully glycosidated using β-D-glucosidase as a catalyst in a homogeneous organic-water system. Under the optimized enzymic conditions, the yields of kinsenoside and goodyeroside A in the enzymic steps both reached 16.8%.

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Du, Xiao-Ming; Sun, Ning-Yi; Irino, Nobuto; Shoyama, Yukihiro published an article about the compound: (R)-4-Hydroxydihydrofuran-2(3H)-one( cas:58081-05-3,SMILESS:O=C1OC[C@H](O)C1 ).HPLC of Formula: 58081-05-3. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:58081-05-3) through the article.

The glycosidic constituents of whole plants of Anoectochilus formosanus propagated by tissue culture were investigated. A new compound, 2-(β-D-glucopyranosyloxymethyl)-5-hydroxymethylfuran, along with the known compounds, 3-(R)-3-β-D-glucopyranosyloxybutanolide (kinsenoside), 3-(R)-3-β-D-glucopyranosyloxy-4-hydroxybutanoic acid, 1-O-isopropyl-β-D-glucopyranoside, (R)-(+)-3,4-dihydroxybutanoic acid γ-lactone, 4-(β-D-glucopyranosyloxy)benzyl alc., (6R,9S)-9-hydroxy-megastigma-4,7-dien-3-one-9-O-β-D-glucopyranoside, and corchoionoside C were isolated.

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The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one( cas:58081-05-3 ) is researched.Synthetic Route of C4H6O3.Panek, James S.; Masse, Craig E. published the article 《Total Synthesis of (+)-Mycotrienol and (+)-Mycotrienin I》 about this compound( cas:58081-05-3 ) in Journal of Organic Chemistry. Keywords: mycotrienin I mycotrienol synthesis convergent asym; chiral allylsilane bond construction; Stille coupling macrocyclization triene incorporation. Let’s learn more about this compound (cas:58081-05-3).

A highly convergent asym. synthesis of the ansamycin antibiotics (+)-mycotrienin I (I) (R = cyclohexylcarbonyl-D-Ala) and (+)-mycotrienol (I) (R = H) (II) has been achieved through the synthesis and coupling of the C9-C16 subunit (III) and the aromatic subunit (IV). All four stereogenic centers were introduced using chiral allylsilane bond construction methodol. A key feature of the synthetic scheme includes the incorporation of the (E, E, E)-triene unit with simultaneous macrocyclization via a Stille-type coupling-macrocyclization.

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