- In-Silico Screening of Novel Synthesized Thienopyrimidines Targeting Fms Related Receptor Tyrosine Kinase-3 and Their In-Vitro Biological Evaluation
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The present investigation describes the design strategy and synthesis of novel thienopyrimidine compounds in addition to their anticancer activity targeting tyrosine kinase FLT3 en-zyme. The synthesized compounds were subjected to a cytotoxic study where compounds 9a and 9b showed the most potent cytotoxicity against HT-29, HepG-2, and MCF-7 cell lines reflected by their IC50 values for 9a (1.21 ± 0.34, 6.62 ± 0.7 and 7.2 ± 1.9 μM), for 9b (0.85 ± 0.16, 9.11 ± 0.3 and 16.26 ± 2.3 μM) and better than that of reference standard which recorded (1.4 ± 1.16, 13.915 ± 2.2, and 8.43 ± 0.5 μM), respectively. Compounds’ selectivity to malignant cells was determined using selectivity assay, interestingly, all the tested compounds demonstrated an excellent selectivity index (SI) range from 20.2 to 99.7. Target in-silico prediction revealed the FLT3 kinase enzyme was the kinase enzyme of highest probability. Molecular docking studies were performed on the pre-pared compounds which showed promising binding affinity for FLT3 kinase enzyme and the main interactions between the synthesized ligands and kinase active site were similar to those between the co-crystallized ligand and the receptor. Further biological exploration was performed using in-vitro FLT3 kinase enzyme inhibition assay. The results showed that the 2-morpholinoacetamido derivative 10a exhibited highest FLT3 inhibitory activity among the tested compounds followed by compound 9a then 12. Pharmacokinetic assessment disclosed that all the investigated compounds were considered as “drug-like” molecules with promising bioavailabil-ity.
- Alkahtani, Manal Mubarak,Altwaijry, Najla,Attallah, Nashwah G. M.,Elmongy, Elshaymaa I.,Henidi, Hanan Ali
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- Synthesis and Evaluation of 2-Aminothiophene Derivatives as Staphylococcus aureus Efflux Pump Inhibitors
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2-aminothiophene derivatives (2AT) in which the thiophene ring is fused with a cycloalkyl or a N-acylated piperidine ring by positions 5 and 6 and carrying a 3-carbethoxy group were synthesized and their bacterial growth and enzyme inhibitory effects against efflux proteins of Staphylococcus aureus leading to resistance to fluoroquinolones and erythromycin (ERY) were investigated. Compounds that most effectively decreases the minimum inhibitory concentrations (MICs) of ciprofloxacin (CIP) were assayed for their dose and time effects on the accumulation and efflux of ethidium bromide (EtBr) in the SA-1 strain. None of the compounds displayed antibacterial activity however, three derivatives carrying 2-amino, 2-aminoacetyl and 2-aminotrifluoroacetyl group enhanced the activity of CIP and ERY by 8- and 16-fold, respectively, and were able to restore the sensitivity of resistant strains, acting as typical efflux pump inhibitors (EPIs). The 2-aminoacetyl and 2-aminotrifluoroacetyl derivatives and two other piperidinyl 2-aminotrifluoroacetyl derivatives increased EtBr accumulation in a dose- and time-dependent manner, and one of them was also able to inhibit the EtBr efflux. Taken together, these results represent an important advance in the development of new EPIs, and demonstrate that 2AT represent a good scaffold for developing new antibiotic adjuvants.
- da Cruz, Rayssa M. D.,Zelli, Renaud,Benshain, Sarah,da Cruz, Ryldene M. D.,Siqueira-Júnior, José P.,Décout, Jean-Luc,Mingeot-Leclercq, Marie-Paule,Mendon?a-Junior, Francisco J. B.
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p. 716 - 725
(2020/04/09)
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- Synthesis and evaluation of new 2-aminothiophenes against: Mycobacterium tuberculosis
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Tuberculosis (TB) and its drug resistant forms kills more people than any other infectious disease. This fact emphasizes the need to identify new drugs to treat TB. 2-Aminothiophenes (2AT) have been reported to inhibit Pks13, a validated anti-TB drug target. We synthesized a library of 42 2AT compounds. Among these, compound 33 showed remarkable potency against Mycobacterium tuberculosis (Mtb) H37RV (MIC = 0.23 μM) and showed an impressive potency (MIC = 0.20-0.44 μM) against Mtb strains resistant to isoniazid, rifampicin and fluoroquinolones. The site of action for the compound 33 is presumed to be Pks13 or an earlier enzyme in the mycolic acid biosynthetic pathway. This inference is based on structural similarity of the compound 33 with known Pks13 inhibitors, which is corroborated by mycolic acid biosynthesis studies showing that the compound strongly inhibits the biosynthesis of all forms of mycolic acid in Mtb. In summary, these studies suggest 33 represents a promising anti-TB lead that exhibits activity well below toxicity to human monocytic cells.
- Thanna, Sandeep,Knudson, Susan E.,Grzegorzewicz, Anna,Kapil, Sunayana,Goins, Christopher M.,Ronning, Donald R.,Jackson, Mary,Slayden, Richard A.,Sucheck, Steven J.
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p. 6119 - 6133
(2016/07/06)
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- BENZOTHIOPHENE COMPOUND, ALTERNATIVE AUTOPHAGY-INDUCING AGENT AND ANTICANCER DRUG INCLUDING BENZOTHIOPHENE COMPOUND AS ACTIVE INGREDIENT, AND METHOD FOR SCREENING FOR COMPOUNDS HAVING ANTICANCER ACTIVITY
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It has been found that efficient screening for a compound having anticancer activity can be achieved by selecting a compound having activity to induce alternative autophagy using, as an index, formation of fluorescent bright spots due to aggregation of a
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Paragraph 0157; 0158
(2015/01/18)
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- Symmetrical approach of spiro-pyrazolidinediones as acetyl-CoA carboxylase inhibitors
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Spiro-pyrazolidinedione derivatives without quaternary chiral center were discovered by structure-based drug design and characterized as potent acetyl-CoA carboxylase (ACC) inhibitors. The high metabolic stability of the spiro-pyrazolo[1,2-a]pyridazine sc
- Kamata, Makoto,Yamashita, Tohru,Kina, Asato,Tawada, Michiko,Endo, Satoshi,Mizukami, Atsushi,Sasaki, Masako,Tani, Akiyoshi,Nakano, Yoshihide,Watanabe, Yuuki,Furuyama, Naoki,Funami, Miyuki,Amano, Nobuyuki,Fukatsu, Kohji
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scheme or table
p. 4769 - 4772
(2012/08/07)
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- New methodology for the N-alkylation of 2-amino-3-acylthiophenes
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2-Amino-3-acylthiophenes are known to allosterically modulate the A 1 adenosine receptor and are also used as intermediates in the synthesis of therapeutic agents and pharmacophores such as thienoazepines and thienopyrimidines. The N-alkylation
- Aurelio, Luigi,Flynn, Bernard L.,Scammells, Peter J.
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experimental part
p. 4886 - 4902
(2011/08/06)
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- Novel selected tandem transformations of the amino and carbonyl/nitrile groups in the gewald thiophenes
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Novel transformations of the amino and carbonyl/nitrile groups in the Gewald thiophenes were studied for thienopyrimidine synthesis. It was found that 2-amino-thiophene-3-carboxamides and ethyl 2-(acetylamino)-4,5,6,7-tetrahydro- 1-benzothiophene-3-carbo-
- Pokhodylo, Nazariy T.,Shyyka, Olga Ya.,Savka, Roman D.,Obushak, Mykola D.
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experimental part
p. 2092 - 2100
(2010/12/19)
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- Synthesis of 3-amino-2-methyl/ethyl-5,6,7,8-tetrahydro[1]benzothieno[2,3-d] pyrimidin-4(3H)-one and its Schiff bases as possible antimicrobial and non-steroidal antiinflammatory agents
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Ethyl 2-amino-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylate 1 has been converted into ethyl 2-(acetylamino)-4,5,6,7-tetrahydro-1-benzothiophene-3- carboxylate 2a and ethyl 2-(propionylamino)-4,5,6,7-tetrahydro-1-benzothiophene- 3-carboxylate 2b. Compo
- Narayana,Ashalatha,Vijaya Raj,Suchetha Kumari
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p. 2696 - 2703
(2007/10/03)
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- BENZOTHIENO’2,3-D! PYRIMIDINE COMPOUNDS AS INHIBITORS OF TYROSINE KINASE ACTIVITIES OF THE EPIDERMAL GROWTH FACTOR RECEPTORS (EGFRS) FOR THE TREATMENT OF HYPERPROLIFERATIVE DISEASES
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This invention relates to novel compounds of formula (I) and processes for their preparation, their use for of treating diseases, particularly hyperproliferative diseases such as cancer, and methods of making pharmaceutical compositions for the treatment or prevention of disorders, particularly hyperproliferative diseases such as cancer. Wherein m is 0, 1 or 2; R3 is *-O(CH2)n AR, wherein Ar is phenyl, thienyl, furyl, pyrrolyl, thiazolyl, oxazolyl, imidazolyl, pyridyl, pyrimidyl od pyridazinyl, wherein Ar can optionally be substituted.
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Page/Page column 54
(2010/11/08)
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- Novel compounds and their use in therapy
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Thiophenepyrimidinone compounds and their use in therapy, especially for use in the treatment and/or prevention of a steroid hormone dependent diseases or disorders, such as steroid hormone dependent diseases or disorders requiring inhibition of 17β-hydroxysteroid dehydrogenase enzymes.
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- FUNGICIDES
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A method of combating phytopathogenic diseases on plants and harvested food crops which comprises applying to a plant, to the seed of a plant, to the locus of the plant or seed or to a harvested crop a fungicidally effective amount of 2-aminothiophene derivatives of formula (1). The invention further relates to fungicidal compositions containing these compounds, processes for preparing these compounds and to some of the compounds themselves.
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Page/Page column 111-112
(2010/02/11)
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- Heterocyclic compound having oxime group
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The present invention provides a compound that has an excellent inhibitory activity on STAT6 activation and is effective against allergic diseases, and a medicinal composition thereof. According to the present invention, disclosed is the compound represented by the General Formula (I) [where R1 and R2 independently represent a C1-6 alkyl group and the like that may have a hydrogen atom or a substituent; R3 represents a C1-6 alkyl group and the like that may have a substituent; R4 and R5 independent represents a hydrogen atom or a C1-6 alkyl group and the like that may have a substituent; R6 represents a hydrogen atom and the like; W represents —SO2— and the like; and X represents a sulphur atom and the like.]or a salt thereof, or a hydrate thereof.
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Page/Page column 32
(2010/02/14)
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- NF-KB INHIBITORS
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The present invention provides novel compounds and methods for using them to treat diseases with aminothiophene inhibitors of IKK-β phosphorylation of IκB. In so doing these aminothiophene inhibitors block pathological activation of transcription factor N
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- Convenient Heterocyclization Reactions with Ethyl 2-Amino-4,5,6,7-tetrahydrobenzothiophene-3-carboxylate: Synthesis of Thiazole, Isoxazole, Pyrazole, Pyrimidine and Pyridazine Derivatives
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Ethyl 2-amino-4,5,6,7-tetrahydrobenzothiophene-3-carboxylate (1) reacts with different reagents to afford thiazole, pyrazole, isoxazole, pyrimidine and pyridazine derivatives with interesting biological activities.
- Zohdi, Hussein F.,Wardakhan, Wagnat W.,Doss, Senot H.,Mohareb, Rafat M.
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p. 2526 - 2545
(2007/10/03)
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- SYNTHESIS OF SUBSTITUTED THIENOTHIAZOLES AND INDOLOTHIAZOLES
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Alkylene-, halo-, and aryl-substituted 2-methylthienothiazoles were obtained by the action of phosphorus pentasulfide on the corresponding 2-acetylamino-3-bromo- or 2-acetylamino-3-hydroxythiophenes in an organic solvent with heating. 2-Oximes of halo- and methyl-substituted isatins were converted by reduction and acetylation into 2-hydroxy-3-acetylaminoindoles, from which 2-methylindolo-thiazoles were obtained by the action of phosphorous pentasulfide with heating in xylene.
- Pinkin, L. D.,Dzyubenko, V. G.,Abramenko, P. I.,Shpileva, I. P.
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p. 345 - 352
(2007/10/02)
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- Heterocyclic β-Enamino Esters, 27. Synthesis of Heterocondensed 6H-1,3-Oxazin-6-ones from N-Acylenamino Esters in the System Triphenylphosphane/Hexachloroethane/Triethylamine
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A simple ring closure reaction of N-acylenamino esters (1b, e, 2, 3a - f, 7) in the system triphenylphosphane/hexachloroethane/triethylamine is described proceeding with high yields.Under chlorinating 3-ester cleavage heterocondensed 6H-1,3-oxazin-6-ones
- Achakzi, Darwizah,Ertas, Muemtaz,Appel, Rolf,Wamhoff, Heinrich
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p. 3188 - 3194
(2007/10/02)
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- Derivatives of thiophene
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New dicyclic thiophene compounds having the structural formula STR1 wherein X is an ester or cyano group and Y is a substituted amino group. The compounds are useful as agricultural chemicals and particularly as ripeners for sugarcane.
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- Use of polycyclic thiophene compounds as ripeners for sugarcane
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Sucrose yield of sugarcane is increased by treating the cane crop a few weeks prior to harvest with a certain type of polycyclic thiophene compound of the formula SPC1 Wherein X is cyano, carboalkoxy or carbamido and Y is an amino or substituted amino group, or with mixtures comprising one or more such compounds.
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