Synthesis of Novel Indole Hydrazone Derivatives and Evaluation of Their Antiplatelet Aggregation Activity
作者:Vida Mashayekhi、Kamaleddin Haj Mohammad Ebrahim Tehrani、Salimeh Amidi、Farzad Kobarfard
DOI:10.1248/cpb.c12-00597
日期:——
Based on the existing reports regarding the antiplatelet aggregation activity of hydrazone derivatives, a series of indole hydrazone derivatives were considered as potential antiplatelet agents and synthesized. The structures of the synthesized compounds were confirmed by spectral data and elemental analysis. The new indole hydrazone derivatives were evaluated for their ability to inhibit platelet aggregation induced by adenosine diphosphate (ADP) and arachidonic acid (AA). Compounds 1h and 3h exhibited remarkable activity against arachidonic acid induced platelet aggregation with IC50 values comparable to that of indomethacin and compound 1i efficiently inhibited platelet aggregation induced by both ADP and AA.
Synthesis of thiocarbohydrazide and carbohydrazide derivatives as possible biologically active agents
作者:Kiran Gangarapu、Sarangapani Manda、Anvesh Jallapally、Sreekanth Thota、Subhas S. Karki、Jan Balzarini、Erik De Clercq、Harukuni Tokuda
DOI:10.1007/s00044-013-0684-3
日期:2014.2
AbstractA series of new β-isatin aldehyde-N,N′-thiocarbohydrazone, bis-β-isatin thiocarbohydrazones, bis-β-isatin carbohydrazones was synthesized by condensation of 5-substituted isatin with thiocarbohydrazide or carbohydrazide. The chemical structures of the newly synthesized compounds were confirmed by FT-IR, 1H NMR, and mass spectral analysis. The synthesized compounds were evaluated for in vitro antiviral
摘要5-取代靛红与硫代卡巴肼或碳酰肼缩合合成了一系列新的β-靛红醛-N、N′-硫代羰腙、双-β-靛红硫代羰腙、双-β-靛红羰腙。新合成化合物的化学结构经FT-IR、1 H NMR和质谱分析证实。评估了合成的化合物对各种 DNA 和 RNA 病毒株的体外抗病毒活性,但与参考化合物相比显示出中等的抗病毒活性。在所有化合物中,6c在两阶段小鼠皮肤致癌试验中表现出最高的化学预防活性。 图形概要
Synthesis and Antimycobacterial Activity of Novel Thiadiazolylhydrazones of 1-Substituted Indole-3-carboxaldehydes
作者:Kamaleddin Haj Mohammad Ebrahim Tehrani、Vida Mashayekhi、Parisa Azerang、Soroush Sardari、Farzad Kobarfard、Kobra Rostamizadeh
DOI:10.1111/cbdd.12230
日期:2014.2
derivatives were tested for their antimycobacterialactivity against Mycobacterium bovis BCG, and the results revealed that among the synthesized compounds, thiadiazole derivatives 4e, 4f, 4n, 4p, 4q, and 4t exhibited the highest activity with IC50 value of 3.91 μg/mL. The results indicate that the thiadiazole moiety plays a vital role in exerting antimycobacterialactivity.
Microwave Assisted Synthesis, Characterization of Some New Isatin and Thiophene Derivatives as Cytotoxic and Chemopreventive Agents
作者:Kiran Gangarapu、Sarangapani Manda、Sreekanth Thota、Rajeshwar Yerra、Subhas S. Karki、Jan Balzarini、Erik De Clercq、Harukuni Tokuda
DOI:10.2174/157018012804586950
日期:2012.12.1
In obtaining some new cytotoxic and chemopreventive agents with potent antiproliferative activity against cancer cells, a series of new beta-isatin aldehyde-N,N'-thiocarbohydrazone, bis-beta-isatin thiocarbohydrazones, bis-beta-isatin carbohydrazones, N,2-bis(thiophen-2-ylmethylidene) thiocarbohydrazone and N,2-bis(thiophen-2-ylmethylidene) carbohydrazone derivatives was synthesized by microwave oriented reaction and evaluated for their in vitro cytotoxic activity. The newly synthesized compounds were characterized based on spectral (FT-IR, NMR, MS) analyses. The inhibitory effects of synthesized compounds on the proliferation of murine leukemia cells (L1210), human T-lymphocyte cells (CEM) and human cervix carcinoma cells (HeLa) were assayed by using MTT assay. The compounds were also tested for their inhibitory effects on Epstein-Barr virus early antigen (EBV-EA) activation induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). In vitro evaluation of these schiff bases revealed mild to moderate cytotoxic activity in a dose dependent manner. The results of the in vitro inhibitory activities of synthetic compounds against EBV-EA activation with IC50 ranges from 485-535 (mol ratio/32pmol/TPA). Chlorine group containing derivatives did not show increased inhibitory activity against tumor promoter TPA induction. Sulphur containing derivatives also did not show a high inhibitory potency in this system.