Tag: M.W=150-200

An article Synthesis of Fmoc-Protected Amino Alcohols via the Sharpless Asymmetric Aminohydroxylation Reaction Using FmocNHCl as the Nitrogen Source WOS:000502170600043 published article about SELECTIVE METHOD; PRIMARY AMIDES; ACID; ESTERS; DEPROTECTION; STYRENES; BENZYL; REGIO; MILD in [Moreira, Ryan; Diamandas, Matthew; Taylor, Scott D.] Univ Waterloo, Dept Chem, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada in 2019.0, Cited 33.0. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4. Name: Methyl 3-phenyl-2-propenoate

The aminohydroxylation of various alkenes using FmocNHCl as a nitrogen source is reported. In general, in the absence of a ligand, the reaction provided racemic Fmoc-protected amino alcohols with excellent regioselectivity but in low to moderate yields. However, in some instances, the yield of an amino alcohol product and the regioselectivity could be altered by the addition of a catalytic amount of triethylamine (TEA). The Sharpless asymmetric variant of this reaction (Sharpless asymmetric aminohydroxylation (SAAH)), using (DHQD)(2)PHAL (DHQD) or (DHQ)(2)PHAL (DHQ) as chiral ligands, proceeded more readily and in higher yield compared to the same reaction in the absence of a chiral ligand. The enantiomeric ratios (er) of all but two examples exceeded 90:10 with many examples giving er values of 95:5 or higher, making FmocNHCl a highly practical reagent for preparing chiral amino alcohols. The SAAH reaction using FmocNHCl was used for the preparation of D-threo-beta-hydroxyasparagine and D-threo-beta-methoxyaspartate, suitably protected for Fmoc solid phase peptide synthesis.

About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Moreira, R; Diamandas, M; Taylor, SD or concate me.. Name: Methyl 3-phenyl-2-propenoate

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Oxidative Kinetic Resolution of Cyclic Benzylic Ethers WOS:000585986100001 published article about C-H BONDS; RACEMIC SECONDARY ALCOHOLS; HYDROGEN-PEROXIDE; ASYMMETRIC EPOXIDATION; OXOCARBENIUM IONS; AEROBIC OXIDATION; HYDROXYLATION; MECHANISM; COMPLEX; DESYMMETRIZATION in [Sun, Shutao; Ma, Yingang; Liu, Ziqiang; Liu, Lei] Shandong Univ, Sch Pharmaceut Sci, Jinan 250100, Peoples R China; [Sun, Shutao; Liu, Lei] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China in 2021.0, Cited 69.0. Category: esters-buliding-blocks. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

A manganese-catalyzed oxidative kinetic resolution of cyclic benzylic ethers through asymmetric C(sp(3))-H oxidation is reported. The practical approach is applicable to a wide range of 1,3-dihydroisobenzofurans bearing diverse functional groups and substituent patterns at the alpha position with extremely efficient enantiodiscrimination. The generality of the strategy was further demonstrated by efficient oxidative kinetic resolution of another type of five-membered cyclic benzylic ether, 2,3-dihydrobenzofurans, and six-membered 6H-benzo[c]chromenes. Direct late-stage oxidative kinetic resolution of bioactive molecules that are otherwise difficult to access was further explored.

Category: esters-buliding-blocks. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Sun, ST; Ma, YG; Liu, ZQ; Liu, L or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Authors Hao, XC; Sun, WG; Ke, CB; Wang, FQ; Xue, YB; Luo, ZW; Wang, XB; Zhang, JW; Zhang, YH in HINDAWI LTD published article about NF-KAPPA-B; ANTI-INFLAMMATION; CYTOTOXIC CONSTITUENTS; ANTIOXIDANT; EXPRESSION; SUBAMOLIDE; APOPTOSIS; PATHWAYS; LEAVES; CELLS in [Hao, Xincai; Ke, Changbin; Wang, Xuanbin] Hubei Univ Med, Coll Pharm, Shiyan 442000, Peoples R China; [Sun, Weiguang; Wang, Fuqian; Xue, Yongbo; Luo, Zengwei; Zhang, Yonghui] Huazhong Univ Sci & Technol, Sch Pharm, Tongji Med Coll, Hubei Key Lab Nat Med Chem & Resource Evaluat, Wuhan 430030, Hubei, Peoples R China; [Zhang, Jinwen] Huazhong Univ Sci & Technol, Tongji Hosp, Tongji Med Coll, Wuhan 430030, Hubei, Peoples R China in 2019.0, Cited 32.0. Recommanded Product: Methyl 3-phenyl-2-propenoate. The Name is Methyl 3-phenyl-2-propenoate. Through research, I have a further understanding and discovery of 103-26-4

The study determined the chemical constituents and anti-inflammatory effects of leaf oil from Cinnamomum subavenium (CS-LO) that has been used in folk medicine to treat various symptoms including inflammation. The anti-inflammatory effects of the oil were evaluated by LPS-stimulated RAW264.7 cells and the Carr-induced hind mouse paw edema model, respectively. In vitro, nitric oxide (NO), prostaglandin E2 (PGE(2)), TNF-, IL-6, and IL-1 were significantly decreased by CS-LO, and the expression of nuclear factor-B (NF-B) protein was blocked as well. In in vivo, the malondialdehyde (MDA) and paw edema levels were decreased by CS-LO, and the same result came up on the NO and tumor necrosis factor (TNF-a) of serum at the 5th h after Carr injection. In addition, iNOS and COX-2 immunoreactive cells of the paw tissue were decreased significantly by CS-LO (200 mg/kg) in histological examination. The present findings indicated that CS-LO have anti-inflammatory properties, and the effects might be caused through inhibiting iNOS, COX-2, TNF-, IL-1, and IL-6 expression via affecting NF-B pathway, which will provide a power scientific basis for CS-LO to be used as the treatment of inflammatory diseases.

Recommanded Product: Methyl 3-phenyl-2-propenoate. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Hao, XC; Sun, WG; Ke, CB; Wang, FQ; Xue, YB; Luo, ZW; Wang, XB; Zhang, JW; Zhang, YH or concate me.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Authors Gini, A; Rigotti, T; Perez-Ruiz, R; Uygur, M; Mas-Balleste, R; Corral, I; Martinez-Fernandez, L; O’Shea, VAD; Mancheno, OG; Aleman, J in WILEY-V C H VERLAG GMBH published article about PHOTOINDUCED ELECTRON-TRANSFER; ANTI-MARKOVNIKOV ADDITION; 9-MESITYL-10-METHYLACRIDINIUM ION; VISIBLE-LIGHT; OXYGENATION; DERIVATIVES; ACR(+)-MES; COMPLEXES; EVOLUTION; OXIDATION in [Gini, Andrea; Rigotti, Thomas; Aleman, Jose] Univ Autonoma Madrid, Fac Ciencias, Organ Chem Dept, Modulo 1,Calle Francisco Tomcis y Valiente 7, E-28049 Madrid, Spain; [Perez-Ruiz, Raul; de la Pena O’Shea, Victor A.] IMDEA Energy, Photoactivated Proc Unit, Av Ramon de la Sagra 3, Madrid 28935, Spain; [Uygur, Mustafa; Mancheno, Olga Garcia] Univ Munster, Organ Chem Inst, Corrensstr 40, D-48149 Munster, Germany; [Mas-Balleste, Ruben] Univ Autonoma Madrid, Fac Ciencias, Inorgan Chem Dept, Modulo 7,Calle Francisco Tomcis y Valiente 7, E-28049 Madrid, Spain; [Mas-Balleste, Ruben; Corral, Ines; Aleman, Jose] Univ Autonoma Madrid, Fac Ciencias, Inst Adv Res Chem Sci IAdChem, Calle Francisco Tomcis y Valiente 7, E-28049 Madrid, Spain; [Corral, Ines; Martinez-Fernandez, Lara] Univ Autonoma Madrid, Fac Ciencias, Condensed Matter Phys Ctr IFIMAC, Calle Francisco Tomcis y Valiente 7, E-28049 Madrid, Spain; [Corral, Ines] Univ Autonoma Madrid, Fac Ciencias, Chem Dept, Modulo 13,Calle Francisco Tomcis y Valiente 7, E-28049 Madrid, Spain in 2019.0, Cited 47.0. Quality Control of 6H-Benzo[c]chromen-6-one. The Name is 6H-Benzo[c]chromen-6-one. Through research, I have a further understanding and discovery of 2005-10-9

A study on C9-imide acridinium photocatalysts with enhanced photoredox catalytic activity with respect to the well-established C9-mesityl acridinium salt is presented. The differences observed rely on the diverse accessibility of singlet charge-transfer excited states, which have been proven by CASPT2/CASSCF calculations, fluorescence and quenching studies.

Quality Control of 6H-Benzo[c]chromen-6-one. About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Gini, A; Rigotti, T; Perez-Ruiz, R; Uygur, M; Mas-Balleste, R; Corral, I; Martinez-Fernandez, L; O’Shea, VAD; Mancheno, OG; Aleman, J or concate me.

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recently I am researching about OILS; SESQUITERPENOIDS; CONSTITUENTS; MALAYSIA, Saw an article supported by the National Science Foundation for Young Scientists of China [21904120]. Application In Synthesis of Methyl 3-phenylpropionate. Published in WILEY-V C H VERLAG GMBH in WEINHEIM ,Authors: Sun, YA; Zhang, HM; Li, ZX; Yu, WH; Zhao, ZJ; Wang, K; Zhang, ML; Wang, JT. The CAS is 103-25-3. Through research, I have a further understanding and discovery of Methyl 3-phenylpropionate

Agarwood, a species of resinous heartwood, is a precious medicinal plant and a type of rare natural spice, which is widely used in medicine, cosmetics, religious activities, and other fields. In this study, agarwood samples from eight different regions across four countries were analyzed by comprehensive two-dimensional gas chromatography-quadrupole time-of-flight mass spectrometry. A total of 232 species were identified (the match factors of these compounds were above 750). The main compounds of agarwood are oxygenated sesquiterpenes and chromones. The compositions of India1 and Malaysia2 were significantly different from those of other samples, which might be attributed to the different production processes of agarwood. For further investigation, factor analysis was conducted for six agarwood samples. The results showed that the data classification possessed a regional characteristic; according to the retention time and relative content, characteristic compositions were determined by factor scores. Finally, the differences of characteristic compositions were simply analyzed, and the reasons were speculated.

Application In Synthesis of Methyl 3-phenylpropionate. About Methyl 3-phenylpropionate, If you have any questions, you can contact Sun, YA; Zhang, HM; Li, ZX; Yu, WH; Zhao, ZJ; Wang, K; Zhang, ML; Wang, JT or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Recently I am researching about BETA-CARYOPHYLLENE; ANTIOXIDANT ACTIVITY; ANTIMICROBIAL ACTIVITY; CYTOTOXIC ACTIVITIES; BIOACTIVE COMPOUNDS; RED PROPOLIS; BEE POLLEN; D-LIMONENE; FT-IR; ORIGIN, Saw an article supported by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Brazil vide research Project on Instituto Nacional de Ciencia e Tecnologia de Frutos TropicaisConselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) [57573781/2008-7]. Published in ELSEVIER in AMSTERDAM ,Authors: Olegario, LS; Andrade, JKS; Andrade, GRS; Denadai, M; Cavalcanti, RL; da Silva, MAAP; Narain, N. The CAS is 103-25-3. Through research, I have a further understanding and discovery of Methyl 3-phenylpropionate. Formula: C10H12O2

The aim of this work was to undertake a detailed analysis on chemical constituents of brown propolis, originating from four different states (Bahia, Minas Gerais, Parana and Sergipe) of Brazil. The volatile profile was determined by using HS-SPME-GC-MS along with the determination of total phenolic compounds content, flavonoids and antioxidant activity. A total of 315 volatile compounds were identified, however, several of them have not been reported so far in the Brazilian brown propolis. The terpenes represented the major class with 40.92-84.66% of the total area in the chromatograms. PCA analysis of the majority of compounds successfully indicated the volatile profile of each propolis sample according to their geographical origin. The analysis of volatile compounds and its characterization also varied significantly and confirmed that these depended on the geographical area of collection of propolis. The data generated in this work may help in establishing criteria for quality control and tracking the specific region of propolis production in different states of Brazil.

Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Olegario, LS; Andrade, JKS; Andrade, GRS; Denadai, M; Cavalcanti, RL; da Silva, MAAP; Narain, N or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Li, XJ; Ding, J; Li, N; Liu, WX; Ding, FH; Zheng, HJ; Ning, YY; Wang, HM; Liu, RM; Ren, SD in [Li, Xiaojing; Li, Ning; Liu, Wenxia; Ding, Fuhao; Zheng, Huijuan; Ning, Yanyan; Wang, Hongmin; Liu, Renmin] Liaocheng Univ, Sch Pharm, Liaocheng 252000, Shandong, Peoples R China; [Ding, Jie; Ren, Shaoda] Liaocheng Peoples Hosp, Cent Lab, Liaocheng 252000, Shandong, Peoples R China published Synthesis and biological evaluation of celastrol derivatives as anti-ovarian cancer stem cell agents in 2019.0, Cited 31.0. Category: esters-buliding-blocks. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3.

Ovarian cancer is associated with a high percentage of recurrence of tumors and resistance to chemotherapy. Cancer stem cells (CSCs) are responsible for cancer progression, tumor recurrence, metastasis, and chemoresistance. Thus, developing CSC-targeting therapy is an urgent need in cancer research and clinical application. In an attempt to achieve potent and selective anti-CSC agents, a series of celastrol derivatives with cinnamamide chains were synthesized and evaluated for their anti-ovarian cancer activities. Most of the compounds exhibited stronger antiproliferative activity than celastrol, and celastrol derivative 7g with a 3,4,5-trimethoxycinnamamide side chain was found to be the most potent antiproliferative agent against ovarian cancer cells with an IC50 value of 0.6 mu M. Additionally, compound 7g significantly inhibited the colony formation ability and reduced the number of tumor spheres. Furthermore, compound 7g decreased the percentage of CD44(+), CD133(+) and ALDH(+) cells. Thus, compound 7g is a promising anti-CSC agent and could serve as a candidate for the development of new antiovarian cancer drugs. (C) 2019 Elsevier Masson SAS. All rights reserved.

Category: esters-buliding-blocks. About Methyl 3-phenylpropionate, If you have any questions, you can contact Li, XJ; Ding, J; Li, N; Liu, WX; Ding, FH; Zheng, HJ; Ning, YY; Wang, HM; Liu, RM; Ren, SD or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

I found the field of Agriculture; Chemistry; Food Science & Technology very interesting. Saw the article Discovery and Targeted Isolation of Phenylpropanoid-Substituted Ester-Catechins Using UPLC-Q/TOF-HRMS/MS-Based Molecular Networks: Implication of the Reaction Mechanism among Polyphenols during Green Tea Processing published in 2021.0. Application In Synthesis of Methyl 3-phenyl-2-propenoate, Reprint Addresses Bao, GH (corresponding author), Anhui Agr Univ, Nat Prod Lab, State Key Lab Tea Plant Biol & Utilizat, Hefei 230036, Anhui, Peoples R China.. The CAS is 103-26-4. Through research, I have a further understanding and discovery of Methyl 3-phenyl-2-propenoate

Tea is an important beverage source of dietary polyphenols and well known for containing phenolic structure diversity. A series of phenylpropanoid-substituted catechins, flavonols, flavan-3-hexoside, and proanthocyanidin are present in different herbs with various biological activities, inspiring our exploration of phenylpropanoid-substituted ester type of catechins (PSECs) due to the enrichment of galloylated catechins in tea. In this study, we used a guiding-screening-location-isolation integrated route including creating a hypothesized PSEC dataset, MS/MS data acquiring, construction of molecular networks, and traditional column chromatography and preliminarily identified 14 PSECs by MS/MS spectrum. Two of these PSECs were further purified and elucidated by NMR and CD spectra. Further MS detection in tea products and fresh leaves suggests that the production of the two new compounds was enhanced during tea processing. The synthesis mechanism was proposed to obtain these types of components for further investigation on their roles in human health protection. This study provides an example for the exploration of new functional ingredients from food sources guided by MS/MS data-based networking, and also new insights into the reaction mechanism to form new catechin conjugates among polyphenols in green tea.

Application In Synthesis of Methyl 3-phenyl-2-propenoate. About Methyl 3-phenyl-2-propenoate, If you have any questions, you can contact Zhang, P; Ke, JP; Chen, CH; Yang, Z; Zhou, X; Liu, XH; Hu, FL; Bao, GH or concate me.

Reference:
Article; Weng, Shiue-Shien; Ke, Chih-Shueh; Chen, Fong-Kuang; Lyu, You-Fu; Lin, Guan-Ying; Tetrahedron; vol. 67; 9; (2011); p. 1640 – 1648;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

An article Synthesis and biological evaluation of celastrol derivatives as anti-ovarian cancer stem cell agents WOS:000486133100049 published article about DESIGN in [Li, Xiaojing; Li, Ning; Liu, Wenxia; Ding, Fuhao; Zheng, Huijuan; Ning, Yanyan; Wang, Hongmin; Liu, Renmin] Liaocheng Univ, Sch Pharm, Liaocheng 252000, Shandong, Peoples R China; [Ding, Jie; Ren, Shaoda] Liaocheng Peoples Hosp, Cent Lab, Liaocheng 252000, Shandong, Peoples R China in 2019.0, Cited 31.0. HPLC of Formula: C10H12O2. The Name is Methyl 3-phenylpropionate. Through research, I have a further understanding and discovery of 103-25-3

Ovarian cancer is associated with a high percentage of recurrence of tumors and resistance to chemotherapy. Cancer stem cells (CSCs) are responsible for cancer progression, tumor recurrence, metastasis, and chemoresistance. Thus, developing CSC-targeting therapy is an urgent need in cancer research and clinical application. In an attempt to achieve potent and selective anti-CSC agents, a series of celastrol derivatives with cinnamamide chains were synthesized and evaluated for their anti-ovarian cancer activities. Most of the compounds exhibited stronger antiproliferative activity than celastrol, and celastrol derivative 7g with a 3,4,5-trimethoxycinnamamide side chain was found to be the most potent antiproliferative agent against ovarian cancer cells with an IC50 value of 0.6 mu M. Additionally, compound 7g significantly inhibited the colony formation ability and reduced the number of tumor spheres. Furthermore, compound 7g decreased the percentage of CD44(+), CD133(+) and ALDH(+) cells. Thus, compound 7g is a promising anti-CSC agent and could serve as a candidate for the development of new antiovarian cancer drugs. (C) 2019 Elsevier Masson SAS. All rights reserved.

HPLC of Formula: C10H12O2. About Methyl 3-phenylpropionate, If you have any questions, you can contact Li, XJ; Ding, J; Li, N; Liu, WX; Ding, FH; Zheng, HJ; Ning, YY; Wang, HM; Liu, RM; Ren, SD or concate me.

Reference:
Patent; SANOFI; US2011/294788; (2011); A1;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Name: 6H-Benzo[c]chromen-6-one. Recently I am researching about C-F BOND; H DUAL ACTIVATION; CASCADE ANNULATION; CARBOXYLIC-ACIDS; ARYL MIGRATION; ARYLATION; ACCESS; DERIVATIVES; EXTENSION; NITRILES, Saw an article supported by the NSFC/ChinaNational Natural Science Foundation of China (NSFC) [21772039, 21421004]; Shanghai Municipal Science and Technology Major Project [2018SHZDZX03]; Programme of Introducing Talents of Discipline to UniversitiesMinistry of Education, China – 111 Project [B16017]; National Key Research and Development Program [2016YFA0200302]; Croucher Foundation (Hong Kong). Published in AMER CHEMICAL SOC in WASHINGTON ,Authors: Pan, C; Wang, LM; Han, JW. The CAS is 2005-10-9. Through research, I have a further understanding and discovery of 6H-Benzo[c]chromen-6-one

By using 2-fluoro-substituted diaryliodonium salts, a novel benzocylization has been accomplished for the synthesis of 3,4-benzocoumarin derivatives via a cascade of ortho-arylation and defluorination in the presence of palladium catalysts. The reaction exhibits a broad compatibility of readily available aromatic acids with an excellent level of site-selectivity. Mechanistic investigations revealed a unique reactivity of carboxylic acid directed arylation by followed nucleophilic substitution of aromatic fluoride in the present system.

About 6H-Benzo[c]chromen-6-one, If you have any questions, you can contact Pan, C; Wang, LM; Han, JW or concate me.. Name: 6H-Benzo[c]chromen-6-one

Reference:
Article; Zhang, Jian; Shi, Dongdong; Zhang, Haifeng; Xu, Zheng; Bao, Hanyang; Jin, Hongwei; Liu, Yunkui; Tetrahedron; vol. 73; 2; (2017); p. 154 – 163;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics