27542-84-3Relevant academic research and scientific papers
Thiazole-containing acrylate derivative and application thereof in preparation of kinase inhibitor
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Paragraph 0036-0040; 0047-0049, (2021/11/06)
The invention discloses a thiazole-containing acrylate derivative and application thereof in preparation of a kinase inhibitor, and belongs to the technical field of pharmaceutical chemistry. In-flight R1 . Any one of the following. The use of
Synthesis of a series of benzothiazole amide derivatives and their biological evaluation as potent hemostatic agents
Nong, Wenqian,Zhao, Anran,Wei, Jinrui,Cheng, Hui,Luo, Xuan,Lin, Cuiwu
, p. 6231 - 6241 (2018/02/19)
A series of benzothiazole amide derivatives were synthesized through a facile and efficient method via a nucleophilic acyl substitution reaction between 2-aminobenzothiazole and various cinnamic acid compounds. The obtained products exhibited good thermal stabilities. All compounds were evaluated for their in vitro hemostatic activities using the commercially available standard drug etamsylate as a positive control. The results showed that compound Q2 had a significant partial coagulation activity, reduced capillary permeability at 5, 10 and 50 μmol L-1, activated thrombin activity, and a more potent platelet aggregation activity than the positive control group (etamsylate, up to 1283.9 times in the nanomole range). A molecular modeling study revealed that compound Q2 was a competitive thrombin activator. Therefore, Q2 may be a potential lead for further biological screening and for the generation of drug molecules. Moreover, the structure-activity relationship of the prepared compounds is also discussed herein.
Synthesis and biological evaluation of a new series of cinnamic acid amide derivatives as potent haemostatic agents containing a 2-aminothiazole substructure
Nong, Wenqian,Zhao, Anran,Wei, Jinrui,Lin, Xiao,Wang, Lisheng,Lin, Cuiwu
supporting information, p. 4506 - 4511 (2017/09/12)
Ten new cinnamic acid derivatives containing a 2-aminothiazole substructure were designed and synthesized. This series of compounds exhibited good thermostabilities as demonstrated by thermogravimetric analysis. In coagulation assays (prothrombin time, activated partial thromboplastin time and thrombin time) in vitro, most compounds demonstrated excellent activities to promote blood coagulation. Among the studied series, compounds N1, N4, N5 and W5 exhibited a significant coagulation activity. Further studies indicated that compound N5 (IC50 = 1.87 μmol/L) displayed the most suitable efficacy of promoting platelet aggregation than the clinically used haemostatic drug etamsylate (IC50 = 46.22 μmol/L). Furthermore, the relationship between the functional groups of the compounds and the corresponding blood coagulant activity was explored in this study.
Synthesis and biological evaluation of curcuminoid derivatives
Feng, Ling,Li, Yang,Song, Zhi-Fang,Li, Hui-Jing,Huai, Qi-Yong
, p. 873 - 881 (2016/02/03)
Many curcuminoid derivatives have been reported to have multiple biological activities. The aim of this study was to improve the biological activity of curcuminoids by synthesizing 16 new derivatives which combined cinnamic acids with curcuminoids, and we also analyzed the structure-activity relationship of the new compounds. Almost all the new compounds showed encouraging activity, especially compound 7g. It had much better antioxidant activity than curcuminoids and Vitamin C (VC), and also had the most significant antibacterial activity, which was 5-folder better than ampicillin (one of the best marketed antibiotics) with a minimum inhibitory concentration (MIC) of 0.5 μg/mL against Gram-positive cocci (Staphylococcus aureus and Streptococcus viridans) as well as Escherichia coli and 0.6 μg/mL against Enterobacter cloacae. Compound 7g also showed the greatest anticancer activity with a much lower IC50, which was 0.51 μM against MCF-7, 0.58 μM against HepG-2, 0.63 μM against LX-2, and 0.79 μM against 3T3. The results suggest that these compounds have promising potential as candidates for the treatment of cancer and thus further studies are warranted.
Development of simple firefly luciferin analogs emitting blue, green, red, and near-infrared biological window light
Iwano, Satoshi,Obata, Rika,Miura, Chihiro,Kiyama, Masahiro,Hama, Kazutoshi,Nakamura, Mitsuhiro,Amano, Yoshiharu,Kojima, Satoshi,Hirano, Takashi,Maki, Shojiro,Niwa, Haruki
, p. 3847 - 3856 (2013/07/04)
Simple firefly luciferin analogs emitting blue, green, and red light were developed. The longest emission maximum was observed at 675 nm, which belongs to the NIR biological window (650-900 nm), useful for deep site bioimaging of living animals. The analogs showed a slow rise of emission intensity compared with the rapid emission of natural luciferin. The light emission of the adenylated analogs was strongly enhanced compared with those of analogs themselves.
NEW GUANIDINE DERIVATIVES IN CINNAMIC SERIES
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Paragraph 0077; 0078; 0079, (2013/07/05)
The invention relates to novel guanidine derivatives in the cinnamic series of general formula (I): The invention also relates to the process for preparing said guanidine derivatives and also to synthetic intermediates. Finally, the invention relates to t
Monoamine oxidase inhibition by selected anilide derivatives
Legoabe, Lesetja,Kruger, Johann,Petzer, Anél,Bergh, Jacobus J.,Petzer, Jacobus P.
experimental part, p. 5162 - 5174 (2011/11/29)
A series of anilide derivatives were synthesized and evaluated as inhibitors of recombinant human monoamine oxidase (MAO) A and B. The most potent inhibitors among the derivatives that were initially evaluated were (2E)-N-(3-chlorophenyl)-3-phenylprop-2-enamide (2c) and (2E)-N-(3-bromophenyl)- 3-phenylprop-2-enamide (2d) with IC50 values of 0.53 μM and 0.45 μM, respectively. These derivatives exhibited reversible and selective inhibition of MAO-B with binding affinities 37 fold higher for MAO-B than for MAO-A. Analysis of the possible binding interactions of these inhibitors with active site models of human MAO-A and -B led to the design of phenolic and benzonitrile derivatives of 2c and 2d. Among these were (2E)-N-(3-chlorophenyl)- 3-(4-hydroxyphenyl)prop-2-enamide (7c) and (2E)-N-(3-bromophenyl)-3-(4- hydroxyphenyl)prop-2-enamide (7d) which inhibited MAO-B selectively and reversibly with IC50 values of 0.032 μM and 0.026 μM, respectively. These inhibitors were at least 14 fold more potent than 2c and 2d. This study concludes that N,3-diphenylprop-2-enamide is a suitable scaffold for the design of selective MAO-B inhibitors and structural modifications to enhance the binding affinities of the inhibitors for the MAO-B active site include substitution with halogens on the N-phenyl ring and substitution with hydroxyl and nitrile functional groups on the para and meta positions, respectively, of the C3 phenyl ring. Possible binding modes of these structures within the MAO-B active site are proposed with the emphasis on the interactions of the inhibitor halogens and the hydroxyl and nitrile functional groups with active site residues and water molecules.
Characterization of the binding properties of SIRT2 inhibitors with a N-(3-phenylpropenoyl)-glycine tryptamide backbone
Kiviranta, Paeivi H.,Salo, Heikki S.,Leppaenen, Jukka,Rinne, Valtteri M.,Kyrylenko, Sergiy,Kuusisto, Erkki,Suuronen, Tiina,Salminen, Antero,Poso, Antti,Lahtela-Kakkonen, Maija,Wallen, Erik A.A.
, p. 8054 - 8062 (2008/12/23)
SIRT2 inhibitors with a N-(3-phenylpropenoyl)-glycine tryptamide backbone were studied. This backbone has been developed in our group, and it is derived from a compound originally found by virtual screening. In addition, compounds with a smaller 3-phenylpropenoic acid tryptamide backbone were also included in the study. Binding modes for the new compounds and the previously reported compounds were analyzed with molecular modelling methods. The approach, which included a combination of molecular dynamics, molecular docking and cluster analysis, showed that certain docking poses were favourable despite the conformational variation in the target protein. The N-(3-phenylpropenoyl)-glycine tryptamide backbone is also a good backbone for SIRT2 inhibitors, and the series of compounds includes several potent SIRT2 inhibitors.
NOVEL DECURSIN DERIVATIVES AND THE USE THEREOF
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Page/Page column 32; 34, (2008/06/13)
The present invention relates to novel (+)-decursin derivatives having anti-cancer activity, the preparation thereof and a composition containing the same for treating cancer disease. The (+)-decursin derivatives of the present invention showed potent inh
SIDE REACTIONS IN THE PHASE TRANSFER CATALYZED WITTIG-HORNER SYNTHESIS. A CONVENIENT METHOD OF PREPARATION OF HYDROXYCINNAMIC ACIDS.
Chenault, J.,Dupin, J. F. E.
, p. 1059 - 1066 (2007/10/02)
Reaction between triethylphosphonoacetate and acetylated hydroxy aromatic aldehydes gives hydroxycinnamic acids except for ortho acetylated componds where the Knoevenagel product is sometimes obtained.
