A novel and efficient method has been developed for the chemoselective conjugate reduction of α,β-unsaturatedketones with tosylhydrazine as a hydrogen source to the corresponding saturatedketones in moderate to good yields. The present protocol does not require the use of transitionmetal, and is efficient being applicable to a wide range of substrates (25 examples).
Potassium Hydroxide Catalysed Intermolecular Aza-Michael Addition of 3-Cyanoindole to Aromatic Enones
作者:Jingya Yang、Tianyuan Li、Hongyan Zhou、Nana Li、Dongtai Xie、Zheng Li
DOI:10.1055/s-0036-1588152
日期:2017.6
Indole is one of the utmost important heterocycles as it is an essential nucleus of many pharmaceutical compounds. Its aza-Michael reaction, however, is underdeveloped because of the moiety’s inherent characteristics. Here, a potassium hydroxide catalysed intermolecular aza-Michael reaction of 3-cyanoindole with aromatic enones is described. A variety of chalcone derivatives are well tolerated and
Development of pyridazine derivatives as potential EGFR inhibitors and apoptosis inducers: Design, synthesis, anticancer evaluation, and molecular modeling studies
作者:Marwa F. Ahmed、Eman Y. Santali、Eman M. Mohi El-Deen、Ibrahim A. Naguib、Radwan El-Haggar
DOI:10.1016/j.bioorg.2020.104473
日期:2021.1
On the other hand, molecular docking study was performed to investigate binding mode of interaction of compounds with EGFR-PK in the active site with the aim of rationalizing its promising inhibitory activity. Finally, based on the aforementioned findings, compounds IXg and IXn could be considered as effective apoptosis modulators and promising leads for future development of new anti-renal cancer agents
Sulfamic acid catalyzed synthesis of new 3,5-[(sub)phenyl]-1H-pyrazole bearing N1-isonicotinoyl: And their pharmacological activity evaluation
作者:Jayashri D. Bhirud、Rajendra D. Patil、Hemant P. Narkhede
DOI:10.1016/j.bmcl.2020.127558
日期:2020.12
A sustainable synthesis of new 3,5-[(sub)phenyl]-1H-pyrazole bearing N1-isonicotinoyl derivatives from substituted chalcones and isoniazid by using sulfamic acid and their pharmacological activity evaluation is reported. An anti-oxidant study is performed by using DPPH assay. In vitro anti-mycobacterial activity of compounds bearing R/R′ = 4-CH3/4-F and 3-OCH3/4-Cl showed complete inhibition (99%)
Molecular Docking Studies, Synthesis of Novel Isoxazole Derivatives from 3-Methoxy Substituted Chalcone and Evaluation of their Anti-Inflammatory Activity
Synthesis of 3-methoxy acetophenone with substituted benzaldehydes resulted in a number of novel chalcones. The chalcones were then treated to a cyclization reaction with hydroxylamine hydrochloride in ethanol to enable the synthesis of 3-methoxy acetophenone isoxazole derivatives. After purification, the structures of the synthesized compounds were identified using TLC, FTIR, 1H NMR, 13C NMR and a