Category: 58081-05-3

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, Journal of Agricultural and Food Chemistry called Identification of Novel Glycosidic Aroma Precursors in Saffron (Crocus sativus L.), Author is Straubinger, Markus; Bau, Brigitte; Eckstein, Susanne; Fink, Margit; Winterhalter, Peter, which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Recommanded Product: 58081-05-3.

The methanolic extract of saffron was separated with the aid of multilayer coil countercurrent chromatog. After purification by HPLC, the following seven novel carotenoid metabolites were identified on the basis of their spectral (UV, FTIR, MS, NMR, CD) data: (4R)-4-hydroxy-2,6,6-trimethylcyclohex-1-enecarbaldehyde O-β-D-gentiobioside (1), (4R)-4-hydroxy-2,6,6-trimethylcyclohex-1-enecarboxylic acid O-β-D-glucopyranoside (2), 6-hydroxy-3-(hydroxymethyl)-2,4,4-trimethylcyclohexa-2,5-dienone 6-O-β-D-glucopyranoside (3), (2Z)-3-methylpent-2-enedioic acid 1-[1-(2,4,4-trimethyl-3,6-dioxocyclohexenyloxy)-O-β-D-glucopyranosid-6-yl] ester (4), (5S)-5-hydroxy-7,7-dimethyl-4,5,6,7-tetrahydro-3H-isobenzofuran-1-one O-β-D-glucopyranoside (5), (1R,5S,6R)-5-(hydroxymethyl)-4,4,6-trimethyl-7-oxabicyclo[4.1.0]heptan-2-one O-β-D-glucopyranoside (6), and (1R)- 3,5,5-trimethylcyclohex-3-enol O-β-D-glucopyranoside (7).

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Pyrroline – Wikipedia,
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Moore, Richard E.; Blackman, Adrian J.; Cheuk, Chad E.; Mynderse, Jon S.; Matsumoto, Gayle K.; Clardy, Jon; Woodard, Ronald W.; Craig, J. Cymerman published the article 《Absolute stereochemistries of the aplysiatoxins and oscillatoxin A》. Keywords: absolute configuration aplysiatoxin oscillatoxin; NMR proton aplysiatoxin oscillatoxin; CD aplysiatoxin oscillatoxin; crystal structure aplysiatoxin.They researched the compound: (R)-4-Hydroxydihydrofuran-2(3H)-one( cas:58081-05-3 ).Synthetic Route of C4H6O3. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:58081-05-3) here.

CD and proton NMR spectral studies of the aplysiatoxins and derivatives, degradation products of the toxins, and an X-ray crystallog. anal. of 19,21-dibromoaplysiatoxin show that the absolute configurations of the ten asym. carbons are 3S,4R,7S,9S,10S,11R,12S,15S,29R,30R. The 31-nor compound, oscillatoxin A, has the same absolute stereochem. at C(3), C(4), C(7), C(9), C(10), C(11), C(12), C(15), and C(29).

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Pyrroline – Wikipedia,
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In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Single-step conversion of chiral carnitine and derivatives into (S)- and (R)-β-substituted γ-butyrolactones, published in 1997-01-31, which mentions a compound: 58081-05-3, mainly applied to 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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Pyrroline – Wikipedia,
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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.Du, Xiao-Ming; Sun, Ning-Yi; Irino, Nobuto; Shoyama, Yukihiro researched the compound: (R)-4-Hydroxydihydrofuran-2(3H)-one( cas:58081-05-3 ).Quality Control of (R)-4-Hydroxydihydrofuran-2(3H)-one.They published the article 《Glycosidic constituents from in vitro Anoectochilus formosanus》 about this compound( cas:58081-05-3 ) in Chemical & Pharmaceutical Bulletin. Keywords: glycoside Anoectochilus structure. We’ll tell you more about this compound (cas:58081-05-3).

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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Reference:
Pyrroline – Wikipedia,
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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, European Journal of Organic Chemistry called Inversion of configuration of (S)-β-hydroxy-γ-butyrolactone with total retention of the enantiomeric purity, Author is De Angelis, Francesco; De Fusco, Enrico; Desiderio, Paola; Giannessi, Fabio; Piccirilli, Fabrizio; Tinti, Maria Ornella, which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Product Details of 58081-05-3.

The inversion of configuration of (S)-β-hydroxy-γ-butyrolactone to its (R) enantiomer is reported with total retention of the enantiomeric purity by a 4-step procedure. The (R) enantiomer was thus synthesized with an overall chem. yield of 47% and >97% ee. This transformation opens an economic route to the production of (R)-GABOB and (R)-carnitine, among other biol. active compounds, from a D-hexose source, or, alternatively, from the industrial waste compound (S)-carnitine. During the reaction sequence, the intermediate (R)-β-(hydroxymethyl)-β-propiolactone is also prepared, which is now under investigation as a chiral synthon for new synthetic applications.

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Pyrroline – Wikipedia,
1-Pyrroline | C4H7N – PubChem

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Pheromone synthesis. XXIV. Synthesis of optically active forms of ipsdienol and ipsenol. The pheromone components of Ips bark beetles, published in 1979, which mentions a compound: 58081-05-3, mainly applied to ipsdienol ipsenol pheromone chiral preparation; Ips terpene pheromone, Safety of (R)-4-Hydroxydihydrofuran-2(3H)-one.

(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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Pyrroline – Wikipedia,
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Product Details of 58081-05-3. 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 A novel generation of optically active ethyl 4-chloro-3-hydroxybutyrate as a C4 chiral building unit using microbial dechlorination. Author is Suzuki, Toshio; Idogaki, Hideaki; Kasai, Naoya.

A novel procedure for the generation of optically active Et 4-chloro-3-hydroxybutyrate using bacterial cells was developed. Et (S)-4-chloro-3-hydroxybutyrate was prepared by Pseudomonas sp. OS-K-29, which stereoselectively assimilates 2,3-dichloro-1-propanol. The reaction was based on its kinetic dehalogenation for both enantiomers using the resting cells. The obtained 4-chloro-3-hydroxybutyrate had high enantiomeric excess of >98% with a yield of 33% at the microbial resolution step. Moreover, several C4 compounds having the 4-chloro-3-hydroxyl function were also resolved and gave good enantiomeric purities (>95% ee). Et (R)-4-chloro-3-hydroxybutyrate was also obtained with high enantiomeric purity (>98% ee) using the cells of Pseudomonas sp DS-K-NR818.

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

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.Liu, Qing; Liu, Zhen-Ling; Tian, Jing; Shi, Wei; Liu, Yin-Qian researched the compound: (R)-4-Hydroxydihydrofuran-2(3H)-one( cas:58081-05-3 ).HPLC of Formula: 58081-05-3.They published the article 《The semisynthetic spin-labelled derivatives of 3-hydroxybutanolide as potential oxidative stress inhibitors》 about this compound( cas:58081-05-3 ) in Natural Product Research. Keywords: hydroxybutanolide spin labeled antioxidant oxidative stress inhibitor; 3-hydroxybutanolide; antioxidant activity; spin-labelled; synthesis. We’ll tell you more about this compound (cas:58081-05-3).

To obtain more accessible oxidative stress inhibitors, a series of novel spin-labeled derivatives of 3-hydroxybutanolide with the natural active compound (kinsenoside) as the lead compound were designed, synthesized from nitroxide free radical piperidines and pyrrolines and the main structural unit of kinsenoside: 3-hydroxybutanolide. Antioxidant activity screening of these derivatives was performed using MTT method on rat pheochromocytoma PC12 cells. The antioxidative stress effect was further investigated on the changes of the important antioxidant enzyme activities and intracellular reactive oxygen species production Some of the derivatives showed comparable or superior antioxidative stress activity to kinsenoside. Also, most of the tested derivatives displayed obvious antioxidative ability in concentrations Cytotoxic assay simultaneously indicated that all compounds had very low toxicity to normal cells. Based on the observed results, the structure-activity relationship of these derivatives was discussed.

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Reference:
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 A novel total synthesis of kinsenoside and goodyeroside A relying on the efficient reaction of the chiral 2(5H)-furanones, published in 2005-10-31, which mentions a compound: 58081-05-3, Name is (R)-4-Hydroxydihydrofuran-2(3H)-one, Molecular C4H6O3, Synthetic Route of C4H6O3.

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

Product Details of 58081-05-3. 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 The semisynthetic spin-labelled derivatives of 3-hydroxybutanolide as potential oxidative stress inhibitors. Author is Liu, Qing; Liu, Zhen-Ling; Tian, Jing; Shi, Wei; Liu, Yin-Qian.

To obtain more accessible oxidative stress inhibitors, a series of novel spin-labeled derivatives of 3-hydroxybutanolide with the natural active compound (kinsenoside) as the lead compound were designed, synthesized from nitroxide free radical piperidines and pyrrolines and the main structural unit of kinsenoside: 3-hydroxybutanolide. Antioxidant activity screening of these derivatives was performed using MTT method on rat pheochromocytoma PC12 cells. The antioxidative stress effect was further investigated on the changes of the important antioxidant enzyme activities and intracellular reactive oxygen species production Some of the derivatives showed comparable or superior antioxidative stress activity to kinsenoside. Also, most of the tested derivatives displayed obvious antioxidative ability in concentrations Cytotoxic assay simultaneously indicated that all compounds had very low toxicity to normal cells. Based on the observed results, the structure-activity relationship of these derivatives was discussed.

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Reference:
Pyrroline – Wikipedia,
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