Tag: M.W=100-150

Name: 4′-Hydroxyacetophenone. In 2021.0 J AM CHEM SOC published article about C-H BONDS; CHEMISTRY in [Pinkert, Tobias; Das, Mowpriya; Schrader, Malte L.; Glorius, Frank] Westfalische Wilhelms Univ Munster, Organ Chem Inst, D-48149 Munster, Germany in 2021.0, Cited 90.0. The Name is 4′-Hydroxyacetophenone. Through research, I have a further understanding and discovery of 99-93-4.

Herein, we describe the formation of quaternary carbon centers with excellent diastereoselectivity via a strain-release protocol. An organometallic species is generated by Cp*Rh(III)-catalyzed C-H activation, which is then coupled with strained bicyclobutanes (BCBs) and a prochiral carbon electrophile in a three-component reaction. This work illustrates a rare example of BCBs in transition metal catalysis and demonstrates their broad potential to access novel reaction pathways. The method developed exhibits ample functional group tolerance, and the products can be further transformed into valuable alpha-quaternary beta-lactones. Preliminary mechanistic investigations suggest a twofold C-C bond cleavage sequence involving sigma-bond insertion and an ensuing beta-carbon elimination event.

About 4′-Hydroxyacetophenone, If you have any questions, you can contact Pinkert, T; Das, M; Schrader, ML; Glorius, F or concate me.. Name: 4′-Hydroxyacetophenone

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

An article Synthetic (N,N-Dimethyl)doxorubicin Glycosyl Diastereomers to Dissect Modes of Action of Anthracycline Anticancer Drugs WOS:000641292800029 published article about OXOCARBENIUM IONS; DOXORUBICIN; ALKYNYLBENZOATES; DAUNORUBICIN; DAUNOSAMINE; DERIVATIVES; SUBSTITUENT in [Wander, Dennis P. A.; Vriends, Merijn B. L.; van Veen, Branca C.; Vlaming, Joey G. C.; Bruyning, Thomas; Hansen, Thomas; van der Marel, Gijsbert A.; Overkleeft, Herman S.; Codee, Jeroen D. C.] Leiden Univ, Leiden Inst Chem, NL-2333 CC Leiden, Netherlands; [van der Zanden, Sabina Y.; Neefjes, Jacques J. C.] Leiden Univ, ONCODE Inst, Med Ctr, NL-2333 ZC Leiden, Netherlands; [Hansen, Thomas] Vrije Univ Amsterdam, Amsterdam Ctr Multiscale Modeling ACMM, Amsterdam Inst Mol & Life Sci AIMSS, Dept Theoret Chem, NL-1081 HV Amsterdam, Netherlands in 2021.0, Cited 32.0. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5. Category: indole-building-block

Anthracyclines are effective drugs in the treatment of various cancers, but their use comes with severe side effects. The archetypal anthracycline drug, doxorubicin, displays two molecular modes of action: DNA double-strand break formation (through topoisomerase II alpha poisoning) and chromatin damage (via eviction of histones). These biological activities can be modulated and toxic side effects can be reduced by separating these two modes of action through alteration of the aminoglycoside moiety of doxorubicin. We herein report on the design, synthesis, and evaluation of a coherent set of configurational doxorubicin analogues featuring all possible stereoisomers of the 1,2-amino-alcohol characteristic for the doxorubicin 3-amino-2,3-dideoxyfucoside, each in nonsubstituted and N,N-dimethylated forms. The set of doxorubicin analogues was synthesized using appropriately protected 2,3,6-dideoxy-3-amino glycosyl donors, equipped with an alkynylbenzoate anomeric leaving group, and the doxorubicin aglycon acceptor. The majority of these glycosylations proceeded in a highly stereoselective manner to provide the desired axial alpha-linkage. We show that both stereochemistry of the 3-amine carbon and N-substitution state are critical for anthracycline cytotoxicity and generally improve cellular uptake. N,N-Dimethylepirubicin is identified as the most potent anthracycline that does not induce DNA damage while remaining cytotoxic.

Category: indole-building-block. About Mequinol, If you have any questions, you can contact Wander, DPA; van der Zanden, SY; Vriends, MBL; van Veen, BC; Vlaming, JGC; Bruyning, T; Hansen, T; van der Marel, GA; Overkleeft, HS; Neefjes, JJC; Codee, JDC or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Product Details of 123-11-5. Authors Han, SJ; Li, ZP; Ma, S; Zhi, YF; Xia, H; Chen, X; Liu, XM in ROYAL SOC CHEMISTRY published article about in [Han, Songjie; Li, Ziping; Ma, Si; Zhi, Yongfeng; Liu, Xiaoming] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China; [Xia, Hong] Jilin Univ, Coll Elect Sci & Technol, State Key Lab Integrated Optoelect, Changchun 130012, Peoples R China; [Chen, Xiong] Fuzhou Univ, Coll Chem, State Key Lab Photocatalysis Energy & Environm, Fuzhou 350002, Peoples R China in 2021, Cited 46. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

Metal-free conjugated microporous polymers (CMPs) as visible-light active and recyclable photocatalysts offer a green and sustainable alternative to classical metal-based photosensitizers. However, the strategy for screening CMP-based heterogeneous photocatalysts has not been interpreted up to now. Herein, we present a general strategy for obtaining excellent solid photocatalysts, which is to implement bandgap engineering in the same series of materials. As a proof of concept, three conjugated porous materials containing benzo[1,2-b:3,4-b0:5,6-b00]trithiophene building blocks (BTT-CMP1, BTT-CMP2 and BTT-CMP3) were successfully constructed. They possess permanent porosity with a large specific surface area and excellent stability. By changing the linker between benzotrithiophene units, the bandgaps, energy levels and photoelectric performances including the absorption, transient photocurrent responses and photocatalytic performances of BTT-CMPs could be handily modulated. Indeed, BTT-CMP2 displayed the best catalytic activity for visible-light-induced synthesis of benzimidazoles among the three CMP materials, even higher than that of small molecule photocatalysts. As a metal-free photocatalyst, interestingly, the screened BTT-CMP2 also showed extensive substrate applicability and outstanding recyclability. Additionally, we have the opinion that this strategy will prove to be a guiding principle for screening superior CMP-based photocatalysts and broaden their application fields.

Product Details of 123-11-5. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Han, SJ; Li, ZP; Ma, S; Zhi, YF; Xia, H; Chen, X; Liu, XM or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Formula: C7H8O2. Utsumi, T; Noda, K; Kawauchi, D; Ueda, H; Tokuyama, H in [Utsumi, Tatsuki; Noda, Kenta; Kawauchi, Daichi; Ueda, Hirofumi; Tokuyama, Hidetoshi] Tohoku Univ, Grad Sch Pharmaceut Sci, Aoba Ku, Aoba 6-3 Aramaki, Sendai, Miyagi 9808578, Japan published Nitrile Synthesis by Aerobic Oxidation of Primary Amines and in situ Generated Imines from Aldehydes and Ammonium Salt with Grubbs Catalyst in 2020, Cited 64. The Name is m-Methoxyphenol. Through research, I have a further understanding and discovery of 150-19-6.

Herein, a Grubbs-catalyzed route for the synthesis of nitriles via the aerobic oxidation of primary amines is reported. This reaction accommodates a variety of substrates, including simple primary amines, sterically hindered beta,beta-disubstituted amines, allylamine, benzylamines, and alpha-amino esters. Reaction compatibility with various functionalities is also noted, particularly with alkenes, alkynes, halogens, esters, silyl ethers, and free hydroxyl groups. The nitriles were also synthesized via the oxidation of imines generated from aldehydes and NH4OAc in situ.

About m-Methoxyphenol, If you have any questions, you can contact Utsumi, T; Noda, K; Kawauchi, D; Ueda, H; Tokuyama, H or concate me.. Formula: C7H8O2

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Recently I am researching about PHENOLIC METABOLITES; MASS-SPECTROMETRY; HUMAN PLASMA; MEAT INTAKE; BIOMARKER; IDENTIFICATION; POLYPHENOLS; CONSUMPTION; BIOAVAILABILITY; QUANTIFICATION, Saw an article supported by the Spanish Ministry of Economy and Competitiveness (MINECO) [PCIN-2015-238]; (FEDER Program from the European Union); Generalitat de Catalunya’s Agency AGAUR [2017 SGR 1546]; EIT Health Project COOK2HEALTH; Juan de la Cierva program from MINECO [FJCI-2015-26590]; Biotechnology and Biological Sciences Research Council (BBSRC)UK Research & Innovation (UKRI)Biotechnology and Biological Sciences Research Council (BBSRC) [BB/R012512/1, BBS/E/F/000PR10343, BBS/E/F/000PR10346]. Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Gonzalez-Dominguez, R; Urpi-Sarda, M; Jauregui, O; Needs, PW; Kroon, PA; Andres-Lacueva, C. The CAS is 100-83-4. Through research, I have a further understanding and discovery of 3-Hydroxybenzaldehyde. Name: 3-Hydroxybenzaldehyde

Accurate dietary assessment is a challenge in nutritional research, needing powerful and robust tools for reliable measurement of food intake biomarkers. In this work, we have developed a novel quantitative dietary fingerprinting (QDF) approach, which enables for the first time the simultaneous quantitation of about 350 urinary food-derived metabolites, including (poly)phenolic aglycones, phase II metabolites, and microbial-transformed compounds, as well as other compounds (e.g., glucosinolates, amino acid derivatives, methylxanthines, alkaloids, and markers of alcohol and tobacco consumption). This method was fully validated for 220 metabolites, yielding good linearity, high sensitivity and precision, accurate recovery rates, and negligible matrix effects. Furthermore, 127 additional phase II metabolites were also included in this method after identification in urines collected from acute dietary interventions with various foods. Thus, this metabolomic approach represents one-step further toward precision nutrition and the objective of improving the accurateness and comprehensiveness in the assessment of dietary patterns and lifestyles.

Name: 3-Hydroxybenzaldehyde. About 3-Hydroxybenzaldehyde, If you have any questions, you can contact Gonzalez-Dominguez, R; Urpi-Sarda, M; Jauregui, O; Needs, PW; Kroon, PA; Andres-Lacueva, C or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Name: Mequinol. Authors Krishnan, RA; Babu, SA; Nitha, PR; Krishnan, J; John, J in AMER CHEMICAL SOC published article about in [Krishnan, Akhil R.; Babu, Sheba Ann; Nitha, P. R.; Krishnan, Jagadeesh; John, Jubi] CSIR Natl Inst Interdisciplinary Sci & Technol CS, Chem Sci & Technol Div, Thiruvananthapuram 695019, Kerala, India; [Babu, Sheba Ann; Nitha, P. R.; John, Jubi] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India in 2021, Cited 60. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5

We have developed a metal-free, mild, and green synthetic route toward benzothieno[3,2-b]benzofurans by the annulation of 3-nitrobenzothiophene with phenols. The reaction was found to be general with a range of substituted phenols. In addition, we could extend the methodology for the synthesis of pentacenes and could demonstrate the synthesis in gram-scale. Moreover, we extended the strategy for the synthesis of benzothieno[2,3-b]benzofurans by starting from 2-nitrobenzothiophenes.

Name: Mequinol. About Mequinol, If you have any questions, you can contact Krishnan, RA; Babu, SA; Nitha, PR; Krishnan, J; John, J or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Application In Synthesis of Mequinol. In 2021 ORG CHEM FRONT published article about ALPHA-AMINO-ACIDS; C-H FUNCTIONALIZATION; DIELS-ALDER REACTIONS; METAL-FREE; DECARBOXYLATIVE ANNULATION; CONJUGATE ADDITION; COUPLING REACTION; MICHAEL ADDITION; VINYL ETHERS; DERIVATIVES in [Wang, Xin; Li, Gang; Li, Xiaojie; Zhu, Dunru; Shen, Ruwei] Nanjing Tech Univ, State Key Lab Mat Oriented Chem Engn, Coll Chem & Chem Engn, Nanjing 210009, Peoples R China in 2021, Cited 56. The Name is Mequinol. Through research, I have a further understanding and discovery of 150-76-5.

The one-pot three-component reaction of p-quinone monoacetals (or p-quinol ethers), l-proline and naphthols is developed for the synthesis of N-aryl-2-arylpyrrolidines under mild conditions with high chemo- and regioselectivity. The reaction may involve multiple processes including condensation, decarboxylation and demethoxylation for the the generation of N-arylated 3,4-dihydro-2H-pyrrolium followed by controllable capture by naphthols. In the absence of a naphthol, p-quinone monoacetal coupled with l-proline to form a complex dipyrroloquinoline product.

About Mequinol, If you have any questions, you can contact Wang, X; Li, G; Li, XJ; Zhu, DR; Shen, RW or concate me.. Application In Synthesis of Mequinol

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Authors Zanin, LL; Jimenez, DEQ; de Jesus, MP; Diniz, LF; Ellena, J; Porto, ALM in ELSEVIER published article about ACIDITIES; CHROMENES in [Zanin, Lucas Lima; de Jesus, Matheus Pereira; Meleiro Porto, Andre Luiz] Univ Sao Paulo, Inst Quim Sao Carlos, Lab Quim Organ & Biocatalise, Av Joao Dagnone 1100, BR-13563120 Sao Carlos, SP, Brazil; [Quintero Jimenez, David Esteban] Univ Fed Amapa, Rodovia Juscelino Kubitscheck,KM 02 S-N, BR-68903419 Macapa, Amapa, Brazil; [Diniz, Luan Farinelli] Univ Fed Minas Gerais, Fac Farm, Dept Prod Farmaceut, Lab Controle Qualidade Medicamentos & Cosmect, BR-31270901 Belo Horizonte, MG, Brazil; [Ellena, Javier] Univ Sao Paulo, Inst Fis Sao Carlos, Lab Multiusuario Cristalog Estrutura, Av Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP, Brazil in 2021, Cited 28. Recommanded Product: 123-11-5. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5

Chromenes and their derivatives are an important class of compounds known for their biological properties. In this study, synthetic methodologies were described to obtain 4H-chromene derivatives. Two routes were investigated, the first being a bicomponent reaction using Knoevenagel adducts as reagents and the second using one-pot tricomponent reactions, both under microwave irradiation, using H2O as solvent and triethylamine as catalyst. Twenty 4H-chromene derivatives were synthesized with 50-95% yields from aromatic aldehydes, 5,5-dimethyl-1,3-cyclohexadione and malononitrile or methyl cyanoacetate, being further characterized by Fourier Transform Infrared and Nuclear Magnetic Resonance. We also report three crystal structures from the synthesized chromene derivatives, by single-crystal X-ray diffraction, showing the main supramolecular features of each structure – a poorly unexplored approach involving this class of compounds so far. (C) 2020 Published by Elsevier B.V.

Recommanded Product: 123-11-5. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Zanin, LL; Jimenez, DEQ; de Jesus, MP; Diniz, LF; Ellena, J; Porto, ALM or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Quality Control of m-Methoxyphenol. Recently I am researching about SPHINGOSINE 1-PHOSPHATE; FINGOLIMOD FTY720; ORAL FINGOLIMOD; BMS-986104; PREDICTION; ARTHRITIS; S1P1, Saw an article supported by the . Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Xiao, ZL; Yang, MG; Dhar, TGM; Xiao, HY; Gilmore, JL; Marcoux, D; McIntyre, KW; Taylor, TL; Shi, H; Levesque, PC; Marino, AM; Cornelius, G; Mathur, A; Shen, DR; Cvijic, ME; Lehman-McKeeman, LD; Sun, HD; Xie, JH; Carter, PH; Dyckman, AJ. The CAS is 150-19-6. Through research, I have a further understanding and discovery of m-Methoxyphenol

Efforts aimed at increasing the in vivo potency and reducing the elimination half-life of 1 and 2 led to the identification of aryl ether and thioether-derived bicyclic S1P(1) differentiated modulators 3-6. The effects of analogs 3-6 on lymphocyte reduction in the rat (desired pharmacology) along with pulmonary- and cardiovascular-related effects (undesired pharmacology) are described. Optimization of the overall properties in the aryl ether series yielded 3d, and the predicted margin of safety against the cardiovascular effects of 3d would be large enough for human studies. Importantly, compared to 1 and 2, compound 3d had a better profile in both potency (ED50 < 0.05 mg/kg) and predicted human half-life (t(1/2) similar to 5 days). Quality Control of m-Methoxyphenol. About m-Methoxyphenol, If you have any questions, you can contact Xiao, ZL; Yang, MG; Dhar, TGM; Xiao, HY; Gilmore, JL; Marcoux, D; McIntyre, KW; Taylor, TL; Shi, H; Levesque, PC; Marino, AM; Cornelius, G; Mathur, A; Shen, DR; Cvijic, ME; Lehman-McKeeman, LD; Sun, HD; Xie, JH; Carter, PH; Dyckman, AJ or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles

Quality Control of 4-Methoxybenzaldehyde. In 2021.0 ORG BIOMOL CHEM published article about ASYMMETRIC-SYNTHESIS; 1,3-DIPOLAR CYCLOADDITION; AZOMETHINE YLIDES; DIASTEREOSELECTIVE SYNTHESIS; STEREOGENIC CENTERS; SPIROPYRAZOLONES; OXINDOLES; CONSTRUCTION; CASCADE; SPIROOXINDOLES in [Wang, Wenyao; Wei, Shiqiang; Bao, Xiaoze; Nawaz, Shah; Qu, Jingping; Wang, Baomin] Dalian Univ Technol, Sch Chem Engn, Dept Pharmaceut Sci, State Key Lab Fine Chem, Dalian 116024, Peoples R China in 2021.0, Cited 52.0. The Name is 4-Methoxybenzaldehyde. Through research, I have a further understanding and discovery of 123-11-5.

An asymmetric [3 + 2] annulation reaction of 4-isothiocyanato pyrazolones with alkynyl ketones in the presence of an organic catalyst derived from a cinchona alkaloid under mild conditions is realized. This protocol provides unprecedented expeditious access to a wide range of optically active spiro[pyrroline-pyrazolones] with various electronic properties in high yields with good to excellent enantioselectivities.

Quality Control of 4-Methoxybenzaldehyde. About 4-Methoxybenzaldehyde, If you have any questions, you can contact Wang, WY; Wei, SQ; Bao, XZ; Nawaz, S; Qu, JP; Wang, BM or concate me.

Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles