91134-18-8Relevant academic research and scientific papers
(5-aryl-1,2,4-oxadiazole-3-yl)(3,4,5-trimethoxyphenyl)-methanol, -ketone and -ketoxime compounds and application thereof
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Paragraph 0057; 0058, (2017/08/25)
The invention belongs to the technical field of medicines, relates to (5-aryl-1,2,4-oxadiazole-3-yl)(3,4,5-trimethoxyphenyl)-methanol, -ketone and -ketoxime compounds and application thereof and in particular relates to the compounds and application thereof to an aspect of preparing anti-tumor medicines by taking the compounds as a tumor cell proliferation inhibitor. The compounds provided by the invention have a general molecular formula shown as the description, wherein X is selected from CH-OH, C=O and C=N-OH; R is selected from hydrogen, hydroxyl, amino, a halogen atom, nitryl, C1 to C6 alkyl, C1 to C6 alkyloxy and C1 to C6 alkylamino. The compounds provided by the invention have a relatively good effect on treating tumor diseases and have a relatively good application prospect in preparation of the anti-tumor medicines.
Microwave-assisted synthesis, molecular docking and antiproliferative activity of (3/5-aryl-1,2,4-oxadiazole-5/3-yl)(3,4,5-trimethoxyphenyl)methanone oxime derivatives
Guan, Qi,Feng, Dongjie,Bai, Zhaoshi,Cui, Yuanhang,Zuo, Daiying,Zhai, Min'An,Jiang, Xuewei,Zhou, Wenbo,Bao, Kai,Wu, Yingliang,Zhang, Weige
supporting information, p. 1484 - 1493 (2015/08/18)
A series of (3/5-aryl-1,2,4-oxadiazole-5/3-yl)(3,4,5-trimethoxyphenyl)methanone oxime derivatives were synthesized via a rapid and facile microwave-assisted synthesis method of building a 1,2,4-oxadiazole skeleton using mandelic acid as the starting material. Twenty-four target compounds were evaluated for their in vitro antiproliferative activities against three human cancer cell lines (SGC-7901, A549 and HT-1080). Among them, 16b exhibited the highest potency against different tumour cell lines, especially the A549 cell line (IC50 = 87 nM). Structure-activity relationship (SAR) studies revealed that the aryl substituent at the C-5 position on the 1,2,4-oxadiazole ring is superior to that at the C-3 position. An oxime as a connector can obviously increase the potency, contrary to that in SMART derivatives. Moreover, 16b significantly induced a cell cycle arrest in the G2/M phase and caused microtubule destabilization. Molecular docking studies provided a theoretical binding mode of 16b at the colchicine site in the tubulin dimer. Our work laid the foundation for further structure-guided design of novel tubulin polymerization inhibitors.
Cyanosilylation of aldehydes and ketones catalyzed by nanocrystalline magnesium oxide
Lakshmi Kantam,Mahendar, Koosam,Sreedhar, Bojja,Vijay Kumar,Choudary
experimental part, p. 3919 - 3936 (2009/04/11)
Cyanosilylation of various aldehydes and ketones with TMSCN proceeded smoothly under mild conditions to give the corresponding cyanohydrin trimethylsilyl ethers in the presence of nanocrystalline magnesium oxide. The cyanohydrin trimethylsilyl ethers of aldehydes produced cyanohydrins in good to high yields on treatment with 2 N HCl. 29Si NMR spectral evidence proved that the reaction proceeds through the hypervalent silicate species by coordination to O2-/O- (Lewis basic site) of nanocrystalline magnesium oxide. Copyright Taylor & Francis Group, LLC.
A new (R)-hydroxynitrile lyase from Prunus mume: Asymmetric synthesis of cyanohydrins
Nanda, Samik,Kato, Yasuo,Asano, Yasuhisa
, p. 10908 - 10916 (2007/10/03)
A new hydroxynitrile lyase (HNL) was isolated from the seed of Japanese apricot (Prunus mume). The enzyme has similar properties with HNL isolated from other Prunus species and is FAD containing enzyme. It accepts a large number of unnatural substrates (benzaldehyde and its variant) for the addition of HCN to produce the corresponding cyanohydrins in excellent optical and chemical yields. A new HPLC based enantioselective assay technique was developed for the enzyme, which promotes the addition of KCN to benzaldehyde in a buffered solution (pH=4.5).
Enzymatic Preparation of Optically Active Cyanohydrin Acetates
Almsick, Andreas van,Buddrus, Joachim,Hoenicke-Schmidt, Petra,Laumen, Kurt,Schneider, Manfred P.
, p. 1391 - 1393 (2007/10/02)
A series of cyanohydrin acetates (1)-(47) of widely varying structures, potential chiral building blocks for numerous synthetic applications, has been prepared in good chemical and often high optical yields by enzymatic hydrolysis of their racemic acetates in the presence of an ester hydrolase from Pseudomonas sp.
