Abstract:Synthesis of novel 4‐(1‐(2‐cyclopropylphenyl)‐2‐(4‐substituted‐1H‐1,2,3‐triazol‐1‐yl)ethyl)morpholine analogues were demonstrated by conventional synthetic procedures. The structure of all the newly synthesized compounds were determined by 1H‐NMR, 13C‐NMR, HRMS and CHN analysis. Cytotoxicity of all synthesized compounds were tested against MCF‐7 Cell lines in different concentrations. The IC50 value of compounds was calculated using graph Pad Prism Version5.1. 4‐chloro substituted analogue exhibited superior r… Show more
“…K 2 CO 3 base, undergone nucleophilic substitution reaction with 3-bromoprop-1-yne (4) to afford 1-(2,4-bis(prop-2-yn-1-yloxy)phenyl)-2-phenylethan-1-one intermediates 5(a-d). Finally, the intermediates 5(a-d) were treated with different aryl azides by thermal CuAAC click reaction [24][25][26] to accomplish 1-(2,4-bis((1-phenyl-1H-1,2,3-triazol-4-yl)methoxy)phenyl)-2-phenylethan-1-ones 7(a-l). Target compound's structure was established by spectral analysis.…”
A series of new deoxybenzoin based bis 1,2,3‐triazole analogues were synthesized and reported in the present communication. Synthesis of analogues were accomplished by a convenient 3 step protocol incorporating Friedel craft acetylation, propargylation and copper‐catalyzed click chemistry in final step to afford 1,2,3‐triazole moiety. The title compounds were screened for antimicrobial activity against two gram positive bacteria viz. S. aureus, B. cereus and two gram negative bacteria viz. E. coli, P. aeruginosa, and three fungus viz. C. albicans, A. niger, A. flavus strains. Compound containing 4‐fluoro substitution (7a) showed slightly superior in‐vitro antimicrobial activity than reference drugs Ciprofloxacin and Fluconazole. SAR of developed hybrids with reference to antimicrobial activity was predicted and presented. In‐silico bioactivity is investigated by molecular docking studies against the crystal structures of glucosamine‐6‐phospate synthase (PDB ID: 2VF5) and secreted aspartic proteinase (PDB ID: 2QZW) which endorsed good binding interactions.
“…K 2 CO 3 base, undergone nucleophilic substitution reaction with 3-bromoprop-1-yne (4) to afford 1-(2,4-bis(prop-2-yn-1-yloxy)phenyl)-2-phenylethan-1-one intermediates 5(a-d). Finally, the intermediates 5(a-d) were treated with different aryl azides by thermal CuAAC click reaction [24][25][26] to accomplish 1-(2,4-bis((1-phenyl-1H-1,2,3-triazol-4-yl)methoxy)phenyl)-2-phenylethan-1-ones 7(a-l). Target compound's structure was established by spectral analysis.…”
A series of new deoxybenzoin based bis 1,2,3‐triazole analogues were synthesized and reported in the present communication. Synthesis of analogues were accomplished by a convenient 3 step protocol incorporating Friedel craft acetylation, propargylation and copper‐catalyzed click chemistry in final step to afford 1,2,3‐triazole moiety. The title compounds were screened for antimicrobial activity against two gram positive bacteria viz. S. aureus, B. cereus and two gram negative bacteria viz. E. coli, P. aeruginosa, and three fungus viz. C. albicans, A. niger, A. flavus strains. Compound containing 4‐fluoro substitution (7a) showed slightly superior in‐vitro antimicrobial activity than reference drugs Ciprofloxacin and Fluconazole. SAR of developed hybrids with reference to antimicrobial activity was predicted and presented. In‐silico bioactivity is investigated by molecular docking studies against the crystal structures of glucosamine‐6‐phospate synthase (PDB ID: 2VF5) and secreted aspartic proteinase (PDB ID: 2QZW) which endorsed good binding interactions.
“…[39] As a reason we have chosen the crystal structure of MST3 (PDB ID: 4QMP) as in silico target. The novel coumarin -triazole hybrids were docked into the cavity of crystal structure of MST3 using Autodock Vina integrated PyRx virtual screening tool, [32,40,41] and presented the docking scores and binding interactions in Table 1. The docking results were validated by re-docking the co-crystalized ligand 5amino-3-{[4-(aminosulfonyl)phenyl]amino}-n-(2,6-difluorophenyl)-1h-1,2,4-triazole-1-carbothioamide (DKI), it produced an RMSD value of 1.025 Å and scored binding energy value of À 8.8 kcal/mole.…”
A library of new coumarin-1,2,3-triazole hybrids 7a-l were synthesized from 4-(diethylamino)-2-hydroxybenzaldehyde precursor through a series of reactions including Vilsmeier-Haack reaction and condensation reaction to achieve key intermediate oxime and further performed click reaction by using different aromatic azides. We screened all molecules in silico against crystal structure of Serine/threonine-protein kinase 24 (MST3), based on these results all molecules were screened for their cytotoxicity against human breast cancer MCF-7 and lung cancer A-549 cell lines. Compound 7 b (p-bromo) showed best activity against both cell lines MCF-7 and A-549 with IC 50 value of 29.32 and 21.03 μM, respectively, in comparison to Doxorubicin corresponding IC 50 value of 28.76 and 20.82 μM. Another compound 7 f (o-methoxy) also indicated good activity against both cell lines with IC 50 value of 29.26 and 22.41 μM. The toxicity of all compounds tested against normal HEK-293 cell lines have not shown any adverse effects.
“…In the recent years, it has become an integral part of drug discovery process [21] . In present study, Autodock Vina integrated PyRx virtual screening tool used [22–26] …”
Section: Introductionmentioning
confidence: 99%
“…[21] In present study, Autodock Vina integrated PyRx virtual screening tool used. [22][23][24][25][26] Considering the individual biological and medicinal importance of quinoline, mono and bis-1,2,3-triazoles, we wanted to explore novel chemical entities based on quinoline and triazole moieties towards their biological significance. Hence, in the present study we focused our interest on the synthesis, characterization and in silico assessment of drug ability of 2-Phenylquinoline fused-bis(methoxymethyl-1,2,3-triazole) derivatives 8(a-n).…”
Synthesis of novel 2‐phenylqinoline conjugated bis‐triazole analogues 8(a–n) demonstrated by a series of reactions concerning Vilsmeier‐Haack reaction, Suzuki‐Miyaura cross coupling, reduction of carbonyl groups, and click reaction. The structure of final compounds predicted based on IR, 1H, 13C NMR and Mass spectral data analysis. The title compounds were screened for their in vitro antimicrobial activities against two‐gram positive (S. aureus and S. pyogens) and two‐gram negative (P. aeruginosa and E. coli) bacteria, and two fungal strains (S. rolfs and F. ricini) by employing Amoxicillin and Bavistin as standard drugs, respectively. The compound containing 3‐chlorophenyl, 4‐(trifluoromethyl)phenyl, 3,4‐dimethylphenyl and 3‐fluoro‐4‐chlorophenyl residues, indicated promising antibacterial activity and the best antifungal activity was reported for compounds containing 3‐chlorophenyl, 4‐methoxyphenyl and 4‐(trifluoromethyl)phenyl residues. Further, Insilco screening of these compounds against COVID‐19 main protease of corona virus had displayed good docking scores and binding interactions in its active site pocket.
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