Heterocyclic Building Block-benzofuran

Varga, Balint published the artcileSynthesis and Photochemical Application of Hydrofluoroolefin (HFO) Based Fluoroalkyl Building Block, COA of Formula: C8H5IO, the publication is Organic Letters (2021), 23(12), 4925-4929, database is CAplus and MEDLINE.

A novel fluoroalkyl iodide, 3-chloro-1,1,1,2-tetrafluoro-2-iodopropane was synthesized on multigram scale from refrigerant gas HFO-1234yf as cheap industrial starting material in a simple, solvent-free, and easily scalable process. Here, its applicability in a metal-free photocatalytic ATRA reaction demonstrated to synthesize valuable fluoroalkylated vinyl iodides RCH(I)=CHC(F)(CF₃)CH₂Cl (R = n-Bu, Ph, pyridin-3-yl, etc.) and proved the straightforward transformability of the products in cross-coupling chem. to obtain conjugated systems R¹C(CCR²)=CHC(F)(CF₃)CH₂Cl (R¹ = Ph, n-Bu, 1-naphthyl, etc.; R² = n-Bu, TMS, Ph, 2-thienyl, etc.); R¹C(Ar)=CHC(F)(CF₃)CH₂Cl (Ar = Ph, furan-3-yl, 3-methyl-3H-imidazo[4,5-b]pyridine-6-yl, etc.).

Organic Letters published new progress about 69626-75-1. 69626-75-1 belongs to benzofurans, auxiliary class Iodide,Benzofuran, name is 2-Iodobenzofuran, and the molecular formula is C7H5Br2F, COA of Formula: C8H5IO.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Zhang, De-Wu published the artcileNew 2-arylbenzofuran metabolite from cell cultures of Morus alba, SDS of cas: 56317-21-6, the publication is Journal of Asian Natural Products Research (2015), 17(6), 683-688, database is CAplus and MEDLINE.

A new 2-arylbenzofuran compound, 5-dehydroxy-moracin U (1), along with 10 known compounds (2-11), were isolated from cell cultures of Morus alba. Their structures were elucidated on the basis of extensive spectroscopic analyses. The anti-inflammatory activity assay of – showed that and exhibited significant inhibitory effect on LPS-induced NO production with the values of 76.4% and 98.7% at 10^– 5 M, resp.

Journal of Asian Natural Products Research published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C18H34N4O5S, SDS of cas: 56317-21-6.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Zhang, Long published the artcileCharacterization of a new flavone and tyrosinase inhibition constituents from the twigs of Morus Alba L, Recommanded Product: 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, the publication is Molecules (2016), 21(9), 1130/1-1130/9, database is CAplus and MEDLINE.

The twigs of Morus alba.L were found to show strong tyrosinase inhibition activity, and the responsible active components in the extract were further investigated in this study. A flavone, named morusone (1), and sixteen known compounds 2-17 were isolated from M. alba twigs and their structures were identified by interpretation of the corresponding ESI-MS and NMR spectral data. In the tyrosinase inhibitory test, the compounds steppogenin (IC50 0.98 ± 0.01 μM), 2,4,2′,4′-tetrahydroxychalcone (IC50 0.07 ± 0.02 μM), morachalcone A (IC50 0.08 ± 0.02 μM), oxyresveratrol (IC50 0.10 ± 0.01 μM), and moracin M (8.00 ± 0.22 μM) exhibited significant tyrosinase inhibition activities, much stronger than that of the pos. control kojic acid. These results suggest that M. alba twig extract should served as a good source of natural tyrosinase inhibitors for use in foods as antibrowning agents or in cosmetics as skin-whitening agents.

Molecules published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C24H12, Recommanded Product: 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Zhang, Dejiang published the artcileNickel- and Palladium-Catalyzed Cross-Coupling of Stibines with Organic Halides: Site-Selective Sequential Reactions with Polyhalogenated Arenes, SDS of cas: 69626-75-1, the publication is ACS Catalysis (2022), 12(2), 854-867, database is CAplus.

Herein, the authors disclose a general and efficient method for the synthesis of Sb-aryl and Sb-alkyl stibines by the Ni-catalyzed cross-coupling of halostibines with organic halides. The synthesized Sb-aryl stibines couple with aryl halides to give biaryls efficiently via Pd catalysis. Sequential reactions of stibines with polyhalogenated arenes bearing active C-I/C-Br sites and inactive C-Cl sites successfully proceeded, giving a variety of complex mols. with good site selectivity. Drugs such as diflunisal and fenbufen, as well as a fenofibrate derivative, were synthesized on gram scales in good yields, together with the high recovery of chlorostibine. Also, catalytic mechanisms are proposed based on the results of control experiments

ACS Catalysis published new progress about 69626-75-1. 69626-75-1 belongs to benzofurans, auxiliary class Iodide,Benzofuran, name is 2-Iodobenzofuran, and the molecular formula is C6H13NO2, SDS of cas: 69626-75-1.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Haraguchi, Ryosuke published the artcilePalladium-Catalyzed Formylation of Arylzinc Reagents with S-Phenyl Thioformate, Safety of 2-Iodobenzofuran, the publication is Organic Letters (2017), 19(7), 1646-1649, database is CAplus and MEDLINE.

In the presence of Pd(OAc)₂ and tri(2-furyl)phosphine in toluene/THF, arylzinc reagents derived from aryl iodides and an alkenylzinc reagent were chemoselectively formylated with S-Ph thioformate PhSCHO to yield aryl aldehydes ArCHO (Ar = 4-NCC₆H₄, 4-EtO₂CC₆H₄, 4-i-Pr₂NCOC₆H₄, 4-ClC₆H₄, 4-BrC₆H₄, 3-ClC₆H₄, 3-BrC₆H₄, 4-MeOC₆H₄, 1,3-benzodioxol-5-yl, 4-HOC₆H₄, 4-Me₂NC₆H₄, 2-MeC₆H₄, 2-MeOC₆H₄, 2,4,6-Me₃C₆H₂, 2-naphthyl, 1-naphthyl, 2-thienyl, 2-benzofuranyl, 1-Me-5-indolyl) and trans-cinnamaldehyde in 56-97% yields. Using deuterated and ¹³C-labeled deuterated and ¹³C-labeled S-Ph thioformate, 4-DCOC₆H₄CN and 4-BrC₆H₄¹³CH:CH₂ were prepared in high isotopic purities by this method.

Organic Letters published new progress about 69626-75-1. 69626-75-1 belongs to benzofurans, auxiliary class Iodide,Benzofuran, name is 2-Iodobenzofuran, and the molecular formula is C8H5IO, Safety of 2-Iodobenzofuran.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Zheng, Zong-Ping published the artcileTyrosinase inhibition constituents from the roots of Morus australis, Recommanded Product: 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, the publication is Fitoterapia (2012), 83(6), 1008-1013, database is CAplus and MEDLINE.

The phytochem. profiles of Morus australis roots, stems and twigs were firstly compared by HPLC anal. It was found that Morus australis stem extract mainly contained one known tyrosinase inhibitor, oxyresveratrol, while its root and twig extract might contain some unknown potential tyrosinase inhibitors. The root extract of Morus australis was further investigated in this study. One new compound, austraone A, together with 21 known compounds, was isolated and their structures were identified by interpretation of MS and NMR data. In the tyrosinase inhibitory testing, some of them, such as oxyresveratrol, moracenin D, sanggenon T, and kuwanon O, exhibited stronger tyrosinase inhibitory activities than that of kojic acid. These results suggested the Morus australis root extract as a good source of natural tyrosinase inhibitors with a great potential to be used in foods as anti-browning agents and in cosmetics as skin-whitening agents.

Fitoterapia published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C18H28B2O4, Recommanded Product: 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Mizutani, Miho Y. published the artcilePrediction of ligand binding affinity using a multiple-conformations-multiple-protonation scheme: application to estrogen receptor α, Formula: C28H18O4, the publication is Chemical & Pharmaceutical Bulletin (2012), 60(2), 183-194, database is CAplus and MEDLINE.

A fast method that can predict the binding affinities of chems. to a target protein with a high degree of accuracy will be very useful in drug design and regulatory science. We have been developing a scoring function for affinity prediction, which can be applied to extensive protein systems, and also trying to generate a prediction scheme that specializes in each target protein, with as high a predictive power as possible. In this study, we have constructed a prediction scheme with target-specific scores for estimating ligand-binding affinities to human estrogen receptor α (ERα), considering the major conformational change between agonist- and antagonist-bound forms and the change in protonation states of histidine at the ligand-binding site. The generated scheme calibrated with fewer training compounds (23 for the agonist-bound form, 17 for the antagonist-bound form) demonstrated good predictive power (a predictive r² of 0.83 for 154 validation compounds); this was also true for compounds with frameworks that were quite different from those of the training compounds Our prediction scheme will be useful in drug development targeting ERα and in primary screening of endocrine disruptors, and provides a successful method of affinity prediction considering the major conformational changes in a protein.

Chemical & Pharmaceutical Bulletin published new progress about 596-01-0. 596-01-0 belongs to benzofurans, auxiliary class Benzofuran,Naphthalene,Alcohol,Ester, name is 3,3-Bis(4-hydroxynaphthalen-1-yl)isobenzofuran-1(3H)-one, and the molecular formula is C28H18O4, Formula: C28H18O4.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Ristivojevic, Petar M. published the artcileHigh-performance thin-layer chromatography/bioautography and liquid chromatography-mass spectrometry hyphenated with chemometrics for the quality assessment of Morus alba samples, Formula: C14H10O4, the publication is Journal of Chromatography A (2019), 190-198, database is CAplus and MEDLINE.

Quality control is a crucial step in the production of effective and safe herbal remedies. The aim of this study was to develop a new, simple, and high throughput procedure for the quality assessment of herbal drugs using a high-performance thin-layer chromatog. (HPTLC)/bioautog. and UPLC-MS/MS approach combined with chemometrics. This was exemplarily shown for Morus alba L. root bark (sang bai pi; SBP). Bioautog. assays were developed for the identification of constituents with radical scavenging (DPPH assay) and antimicrobial activities (Bacillus subtilis, Escherichia coli) of 18 different M. alba samples, which was supported by UPLC-MS/MS anal. Further, the combination of bioautog. and chemometrics identified those samples with the most bioactive constituents. Plant materials collected from Serbia (11 samples) showed higher both radical scavenging and antimicrobial activities compared to samples provided from China (7 samples). Principal component anal. (PCA) confirmed the discrimination of geog. different samples and recognized their main markers responsible for differences between Serbian and Chinese samples. Most importantly for quality assessment, the combined HPTLC/bioautog. and UPLC-MS/MS approach not only allowed for a fast chem. profiling of the investigated samples and their unambiguous identification, but also for the disclosure of major and minor bioactive constituents present in SBP.

Journal of Chromatography A published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C14H10O4, Formula: C14H10O4.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Culenova, Marie published the artcileMultiple In vitro biological effects of phenolic compounds from Morus alba root bark, Application In Synthesis of 56317-21-6, the publication is Journal of Ethnopharmacology (2020), 112296, database is CAplus and MEDLINE.

Morus alba L. is used in traditional Chinese medicine for the treatment of various diseases, including bacterial infections and inflammation. As a rich source of phenolic compounds, the plant is an object of many phytochem. and pharmacol. studies. The aim of the study was to isolate and evaluate possible parallel antiviral, antibacterial, and anti-inflammatory activities of phenolic mulberry compounds Extensive chromatog. separation of mulberry root bark extract and in vitro biol. screening of 26 constituents identified promising candidates for further pharmacol. research. Selected compounds were screened for anti-infective and anti-inflammatory activities. Antiviral activity was determined by the plaque number reduction assay and by the titer reduction assay, antibacterial using broth microdilution method, and anti-inflammatory activity using COX Colorimetric inhibitor screening assay kit. One compound was evaluated in vivo in carrageenan-induced paw-edema in mice. Five prenylated compounds 1, 2, 8, 9, and 11, together with a simple phenolic ester 13, exhibited inhibitory activity against the replication of herpes simplex virus 1 (HSV-1) or herpes simplex virus 2 (HSV-2), with IC₅₀ values ranging from 0.64 to 1.93 μg/mL, and EC₅₀ values 0.93 and 1.61 μg/mL. Mol. docking studies demonstrated the effects of the active compounds by targeting HSV-1 DNA polymerase and HSV-2 protease. In antibacterial assay, compounds 1, 4, 11, and 17 diminished the growth of all of the Gram-pos. strains tested, with MIC values of 1-16 μg/mL. The anti-inflammatory ability of several compounds to inhibit cyclooxygenase 2 (COX-2) was tested in vitro, and compound 16 displayed greater activity than the indomethacin, pos. control. Mulberrofuran B (11) showed anti-inflammatory activity in vivo against carrageenan-induced paw-edema in mice. Exptl. investigation showed promising antiviral, antibacterial, and/or anti-inflammatory activities of the phenolic mulberry constituents, often with multiple inhibitory effects that might be used as a potential source of new medicine.

Journal of Ethnopharmacology published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C14H10O4, Application In Synthesis of 56317-21-6.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem

Luo, Juan published the artcileSeparation of phenols from ramulus mori by high-speed counter-current chromatography, Related Products of benzofurans, the publication is Tianran Chanwu Yanjiu Yu Kaifa (2012), 24(4), 486-489, database is CAplus.

A new method was developed for the separation and purification of phenols by high-speed counter-current chromatog.(HSCCC) from extract of Ramulus mori. The separation condition was determined as follows: n-hexane: Et acetate: methanol: water(1:1:1:2, volume/volume) as the solvent system, the upper phase as the stationary phase, the lower phase as the mobile phase, 2.0 mL/min of flow-rate, 900 rpm of rotation speed, and 75 mg of injection amount Trans-oxyresveratrol(25.2 mg), trans-resveratrol(7.4 mg), and moracin M(29.1 mg) were obtained and identified by HPLC, MS, ¹H and ¹³C NMR. It indicates that HSCCC can be used for separating the active compounds of Ramulus mori efficiently and exhibits many advantages compared with the column chromatog. method.

Tianran Chanwu Yanjiu Yu Kaifa published new progress about 56317-21-6. 56317-21-6 belongs to benzofurans, auxiliary class Metabolic Enzyme,PDE,Natural product, name is 5-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol, and the molecular formula is C14H10O4, Related Products of benzofurans.

Referemce:
https://en.wikipedia.org/wiki/Benzofuran,
Benzofuran | C8H6O – PubChem