Bis(1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane) Peroxodisulfate: A Mild and Efficient Oxidant for Cleavage of Nitrogen Double Bonds and Oxidation of Alcohols under Anhydrous Conditions
Bis(1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane) Peroxodisulfate: A Mild and Efficient Oxidant for Cleavage of Nitrogen Double Bonds and Oxidation of Alcohols under Anhydrous Conditions
Bis(1-benzyl-4-aza-1-azoniabicyclo[2.2.2]octane) peroxodisulfate (1), is readily prepared as an orange solid from commercially available 1,4-diazabicyclo[2.2.2]octane and potassium peroxodisulfate. This reagent easily converts hydrazones, semicarbazones, oximes, and alcohols to the corresponding carbonyl compounds with excellent yields.
properties and development of a general method to construct these derivatives has now been developed. Indolines (2,3-dihydroindoles) and isatogens have been prepared in an efficient route starting from indoles substituted in position 2. Reduction of the 2-substituted indoles was performed with tin and hydrochloric acid to give racemic indolines, which were converted to isatogens by 3-chloroperoxybenzoic
Synthesis, Characterization, Molecular Docking Studies and Anticancer Activity of Schiff Bases Derived from 3-(Substituted phenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde and 2-Aminophenol
作者:Sachin S. Wazalwar、Anita R. Banpurkar、Franc Perdih
DOI:10.1007/s10870-018-0727-1
日期:2018.12
A series of new Schiff bases were synthesized by microwave assisted reactions of substituted 1-phenyl-1H-pyrazole-4-carbaldehyde and 2-aminophenol in ethanol and characterized by elemental analysis and spectroscopic (IR, 1H NMR and MS) data. The crystal structures of four compounds were studied using single-crystal XRD data. Molecular docking studies of all synthesized compounds were performed into the binding site of a protein 3GCW to gain comprehensive understanding into possible binding modes. These compounds were also screened for anticancer activity against the liver (HEP-G2) cell line using the sulphorhodamine-B assay method. Adriamycin i.e. doxorubicin was used as reference standard. One of the compounds shows anticancer activity close to the famous anticancer agent doxorubicin, which was used as control in this study. It is observed that all molecules show activity close to the standard in high concentrations only. Present study describes the anticancer activity and crystal structure study of Schiff bases of substituted pyrazole-4-carbaldehyde with 2-aminophenol. Docking study of all compounds against human hepatoma cell line, HEP-G2 correlates with in vitro activity.
A library of novel pyrazole-imidazo[1,2-α]pyridine scaffolds was designed and synthesized through a one-pot three-component tandem reaction. The structures of synthesized conjugates were confirmed by spectroscopic techniques (NMR, IR and HRMS). In vitro antibacterial evaluation of the twelve synthesized molecules (7a, 8a-k) against methicillin-resistant Staphylococcus aureus and normal strains of Escherichia
The design, synthesis, structure–activity relationship, and biological activity of 2,4‐thiazolidinedione derivatives as peroxisome proliferator‐activated receptor‐γ (PPAR‐γ) modulators for antidiabetic activity are reported. Fifteen 2,4‐thiazolidinedione derivatives clubbed with pyrazole moiety were docked into the ligand binding domain of PPAR‐γ by the Glide XP module of Schrodinger. Eight derivatives
2,4-噻唑烷二酮衍生物作为过氧化物酶体增殖物激活受体-γ(PPAR-γ)调节剂的设计、合成、结构-活性关系和生物活性已被报道。通过薛定谔的 Glide XP 模块,15 种带有吡唑部分的 2,4-噻唑烷二酮衍生物对接在 PPAR-γ 的配体结合域中。与标准药物罗格列酮(Glide XP 评分 = -9.165)相比,Glide XP 评分 > -8 的八种衍生物(5a、5b、5d、5f、5i、5l、5n、5o)显示出与氨基的几乎相似的相互作用分子对接研究中的酸,如 HIS 449、TYR 473、TYR 327、HIS 323 和 SER 289。在链脲佐菌素诱导的糖尿病大鼠模型中,进一步筛选了这八种衍生物的 PPAR-γ 反式激活和体内血糖降低活性。与参考药物罗格列酮和吡格列酮相比,化合物 5o、5n、5a、5i 和 5b 的 PPAR-γ 反式激活分别为 52.06、51.30、48