Tag: M.W:100-200

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 Absolute stereochemistries of the aplysiatoxins and oscillatoxin A, published in 1984-06-29, which mentions a compound: 58081-05-3, mainly applied to absolute configuration aplysiatoxin oscillatoxin; NMR proton aplysiatoxin oscillatoxin; CD aplysiatoxin oscillatoxin; crystal structure aplysiatoxin, HPLC of Formula: 58081-05-3.

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).

Compounds in my other articles are similar to this one((R)-4-Hydroxydihydrofuran-2(3H)-one)HPLC of Formula: 58081-05-3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (R)-4-Hydroxydihydrofuran-2(3H)-one(SMILESS: O=C1OC[C@H](O)C1,cas:58081-05-3) is researched.HPLC of Formula: 58081-05-3. The article 《Chiroptical properties of lactones. II. Electronic rotatory strengths of the n .far. π* transition in saturated γ- and δ-lactones》 in relation to this compound, is published in Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1972-1999). Let’s take a look at the latest research on this compound (cas:58081-05-3).

The chiroptical properties associated with the n→π* transition of dissymmetric saturated γ- and δ-lactones were calculated and relations between the chiroptical observables and the stereochem. and electronic structural features were examined The calculations were based on the INDO MO method for the electronic structure of the mol. systems and excited states were constructed in the virtual orbital-CI approximation The highest and second highest occupied orbitals calculated for each of the 17 structures studied are, resp., the inplane n and the out-of-plane π° nonbonding orbitals localized on the O:CO group. The lowest lying singlet state is nπ* and the calculated transition wavelengths for transitions in this state are 197-230 nm. The calculated n→π* rotatory strengths and dissymmetry factors agree with experiment

Compounds in my other articles are similar to this one((R)-4-Hydroxydihydrofuran-2(3H)-one)Safety of (R)-4-Hydroxydihydrofuran-2(3H)-one, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one. 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 Glycosidic constituents from in vitro Anoectochilus formosanus. Author is Du, Xiao-Ming; Sun, Ning-Yi; Irino, Nobuto; Shoyama, Yukihiro.

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.

Compounds in my other articles are similar to this one((R)-4-Hydroxydihydrofuran-2(3H)-one)Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: 4-Methoxypiperidine, is researched, Molecular C6H13NO, CAS is 4045-24-3, about Nonbisphosphonate inhibitors of Plasmodium falciparum FPPS/GGPPS.Synthetic Route of C6H13NO.

A series of novel thiazole-containing amides such as I.TFA were synthesized as inhibitors of Plasmodium falciparum farnesyldiphosphate synthase (PfFPPS) and geranylgeranyldiphosphate synthase (PfGGPPS). A structure-activity relationship study of these compounds led to the identification of potent and selective PfFPPS/GGPPS inhibitors with good in vitro ADME profiles. The most promising candidate mols. were progressed to mouse in vivo PK studies and demonstrated adequate free drug exposure to warrant further investigation.

Compounds in my other articles are similar to this one(4-Methoxypiperidine)Synthetic Route of C6H13NO, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

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.Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one.Tanaka, Akira; Yamashita, Kyohei published the article 《A novel synthesis of (R)- and (S)-4-hydroxytetrahydrofuran-2-ones》 about this compound( cas:58081-05-3 ) in Synthesis. Keywords: furanone hydro hydroxy chiral; hydroxy lactone chiral; butanolide hydroxy chiral; dioxolaneacetate methyl; dioxaspirodecaneacetate chiral; spirodioxadecaneacetate chiral. Let’s learn more about this compound (cas:58081-05-3).

The hydroxy ester I (R = H, R1 = OH), prepared from L-ascorbic acid by sequential treatment with acetone and AcCl, 30% H2O2 and CaCO3, and Me2SO4, was treated with MeSO2Cl and pyridine in CH2Cl2 to give 90% I (R = H, R1 = MeSO3), which, when heated at 85° with LiCl in DMF furnished a mixture of the erythro and threo chloro esters I (R = Cl, R1 = H; R = H, R1 = Cl) (II). Upon hydrogenolysis with 10% Pd/C in the presence of Et3N, II yielded the ester I (R = R1 = H), which was treated with dilute HCl giving a nearly quant. yield of hydroxylactone III. The (S)-enantiomer was analogously prepd from D-isoascorbic acid.

Compounds in my other articles are similar to this one((R)-4-Hydroxydihydrofuran-2(3H)-one)Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

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 Enantiomerically pure β,γ-epoxyesters from β-hydroxylactones: synthesis of β-hydroxyesters and (-)-GABOB, Author is Larcheveque, M.; Henrot, S., which mentions a compound: 58081-05-3, SMILESS is O=C1OC[C@H](O)C1, Molecular C4H6O3, Related Products of 58081-05-3.

The preparation of enantiomerically pure β,γ-epoxy esters was achieved by chemoselective opening of β-hydroxybutanolides with Me3SiI followed by cyclization of the resulting iodohydrins with Ag2O. The reaction of these epoxy esters with lithio- or magnesiocuprates afforded stereochemically pure α-substituted-β-hydroxy esters. Alternatively, the title compound, (R)-H2NCH2CH(OH)CH2CO2H, was synthesized in optically pure form from the iodohydrin (R)-ICH2CH(OH)CH2CO2Et.

Compounds in my other articles are similar to this one((R)-4-Hydroxydihydrofuran-2(3H)-one)Related Products of 58081-05-3, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Reference of 2,6-Dichloro-3-fluoropyridine. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2,6-Dichloro-3-fluoropyridine, is researched, Molecular C5H2Cl2FN, CAS is 52208-50-1, about 1,2,4-Triazolo-[1,5-a]pyridine HIF Prolylhydroxylase Domain-1 (PHD-1) Inhibitors With a Novel Monodentate Binding Interaction. Author is Ahmed, Saleh; Ayscough, Andrew; Barker, Greg R.; Canning, Hannah E.; Davenport, Richard; Downham, Robert; Harrison, David; Jenkins, Kerry; Kinsella, Natasha; Livermore, David G.; Wright, Susanne; Ivetac, Anthony D.; Skene, Robert; Wilkens, Steven J.; Webster, Natalie A.; Hendrick, Alan G..

Herein the authors describe the identification of 4-{[1,2,4]triazolo[1,5-a]pyridin-5-yl}benzonitrile-based inhibitors of the hypoxia-inducible factor prolylhydroxylase domain-1 (PHD-1) enzyme. These inhibitors were shown to possess a novel binding mode by x-ray crystallog., in which the triazolo N1 atom coordinates in a hitherto unreported monodentate interaction with the active site Fe2+ ion, while the benzonitrile group accepts a hydrogen-bonding interaction from the side chain residue of Asn 315. Further optimization led to potent PHD-1 inhibitors with good physicochem. and pharmacokinetic properties.

Compounds in my other articles are similar to this one(2,6-Dichloro-3-fluoropyridine)Reference of 2,6-Dichloro-3-fluoropyridine, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Formula: C5H3ClFN. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 4-Chloro-2-fluoropyridine, is researched, Molecular C5H3ClFN, CAS is 34941-92-9, about Design and Synthesis of N-Aryl Phenoxyethoxy Pyridinones as Highly Selective and CNS Penetrant mGlu3 NAMs. Author is Engers, Julie L.; Bollinger, Katrina A.; Weiner, Rebecca L.; Rodriguez, Alice L.; Long, Madeline F.; Breiner, Megan M.; Chang, Sichen; Bollinger, Sean R.; Bubser, Michael; Jones, Carrie K.; Morrison, Ryan D.; Bridges, Thomas M.; Blobaum, Anna L.; Niswender, Colleen M.; Conn, P. Jeffrey; Emmitte, Kyle A.; Lindsley, Craig W..

Herein, we detail the optimization of the mGlu3 NAM, VU0650786 (I), via a reductionist approach to afford a novel, simplified mGlu3 NAM scaffold II that engenders potent and selective mGlu3 inhibition (mGlu3 IC50 = 245 nM, mGlu2 IC50 > 30 μM) with excellent central nervous system penetration (rat brain/plasma Kp = 1.2, Kp,uu = 0.40). Moreover, this new chemotype, exemplified by VU6010572, requires only four synthetic steps and displays improved physiochem. properties and in vivo efficacy in a mouse tail suspension test (MED = 3 mg/kg i.p.).

Compounds in my other articles are similar to this one(4-Chloro-2-fluoropyridine)Formula: C5H3ClFN, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

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

Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one. 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 New chiral synthons. β,γ-Epoxy esters. Application to the synthesis of enantiomerically pure β-hydroxy esters. Author is Larcheveque, Marc; Henrot, Serge.

The preparation of optically pure β,γ-epoxy esters I (R = H, Me) was achieved through the opening of 3-hydroxy butanolides II with trimethylsilyl iodide followed by cyclization with silver oxide. I react with organocuprates to afford β-hydroxy esters III (R1 = Me, Et, Bu, Me2C:CH, BuCH:CH) of high enantiomeric purity.

When you point to this article, it is believed that you are also very interested in this compound(58081-05-3)Application In Synthesis of (R)-4-Hydroxydihydrofuran-2(3H)-one and due to space limitations, I can only present the most important information.

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

Nakagawa, Atsushi; Suzuki, Takahiro; Kato, Ko; Shinmyo, Atsuhiko; Suzuki, Toshio 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.

(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.

When you point to this article, it is believed that you are also very interested in this compound(58081-05-3)HPLC of Formula: 58081-05-3 and due to space limitations, I can only present the most important information.

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