61341-03-5Relevant academic research and scientific papers
Structural and biological study of synthesized anthraquinone series of compounds with sulfonamide feature
Awasthi, Pamita,Vatsal, Manu,Sharma, Anjali
, p. 4465 - 4480 (2019/01/24)
1, 4 and 5, 8-Positions as well as type of functionalities on these positions at anthraquinone-9, 10-dione are proposed to be significant for anticancer activity. Therefore, keeping this into consideration, a series of 1-substituted anthraquinone-based compounds are designed, synthesized, characterized and biologically evaluated for anticancer activity. The structure of synthesized compounds is confirmed by spectroscopic analysis, i.e. 1D (1H and 13C) nuclear magnetic resonance (NMR), electrospray ionization-mass spectrometry (ESI-MS) studies and Fourier transform infrared (FT-IR) tools. Synthesized 1-substituted anthraquinone compounds showed cytotoxic effect against human breast cancer cell line (MCF-7), human prostate cancer cell line (PC-3) and Hela derivative human cell line (Hep 2C) (Hela derivative) cell lines. All the compounds showed mild antibacterial property in comparison to standard antibiotic streptomycin against Gram + ve and –ve bacteria. They also exhibit mild antifungal activity. In vitro calf thymus (ct)-DNA binding studies of synthesized series using UV–visible absorption spectra measurement and fluorescence tools indicate partial intercalative mode of binding. Electronic properties of synthesized analogues and mitoxantrone are compared using highest occupied molecular orbital–lowest occupied molecular orbital (HOMO–LUMO) calculation. Low energy gap between HOMO and LUMO of 1-substituted anthraquinone compounds indicates the highly charged structure of the molecules in comparison to mitoxantrone, and the same is proposed to be responsible for comparable cytotoxic activities of the synthesized 1-substituted anthraquinone molecules. Docking interaction of synthesized 1-substituted anthraquinone compounds and i-motif sequence indicates intercalative mode of binding of compounds with telomeric junction. Communicated by Ramaswamy H. Sarma.
TRICYCLIC GYRASE INHIBITORS
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, (2015/03/28)
Disclosed herein are compounds having the structure of Formula I and pharmaceutically suitable salts, esters, and prodrugs thereof that are useful as antibacterially effective tricyclic gyrase inhibitors. Related pharmaceutical compositions, uses and methods of making the compounds are also contemplated.
Wolff rearrangement of diazo ketones derived from N-p-tolylsulfonyl-protected α- and β-amino acids
Wang, Jianbo,Hou, Yihua
, p. 1919 - 1923 (2007/10/03)
Diazo ketones derived from N-p-tolylsulfonyl (tosyl)-protected α- and β-amino acids have been synthesized and their diazo decomposition under standard Wolff rearrangement conditions, PhCO2Ag-Et3N-MeOH, has been investigated. It is observed that, under these conditions, several different reaction pathways, including direct carbene N-H insertion, are possible. The reaction is markedly affected by the N-protecting group, the substrate structure and solvent. For those diazo ketones derived from N-tosyl-protected β-amino acids, the diazo decomposition with anhydrous THF as solvent and PhCO2Ag dissolved in Et3N as catalyst gives the corresponding 5-substituted pyrrolidinones in excellent yields.
SULFUR YLIDES. 3. SYNTHESIS OF KETO-GROUP STABILIZED AMINO-CONTAINING SULFUR YLIDES FROM AMINO ACIDS
Tolstikov, G. A.,Galin, F. Z.,Lakeev, S. N.,Khalilov, L. M.,Sultanova, V. S.
, p. 535 - 541 (2007/10/02)
An effective path of synthesis was developed of new synthetic intermediates, the optically active, keto-group stabilized amino-substituted sulfur ylides.
