Design, synthesis, and evaluation of anti-inflammatory and ulcerogenicity of novel pyridazinone derivatives
摘要:
A series of pyridazinone-containing compounds were designed and synthesized as congeners for diclofenac, the most potent and widely used NSAID. The target compounds were evaluated for their anti-inflammatory activity on rat paw edema inflammation model against diclofenac as a reference compound. Seven of the tested compounds demonstrated more than 50% inhibition of carrageenan-induced rat paw edema at a dose 10 mg/kg. The compounds, 6-(2-bromophenylamino)pyridazin-3(2H)-one 2a and 6-(2,6-dimethylphenylamino)pyridazin-3(2H)-one 2e, displayed 74 and 73.5% inflammation-inhibitory activity, respectively, which is comparable to diclofenac (78.3%) at the same dose level after 4 h. The most active compounds as anti-inflammatory agents, 2a, 2e, and 6a, displayed fewer number of ulcers and milder ulcer score than indomethacin in ulcerogenicity screening.
作者:Eman M. Ahmed、Nadia A. Khalil、Azza T. Taher、Rana H. Refaey、Yassin M. Nissan
DOI:10.1016/j.bioorg.2019.103272
日期:2019.11
Novel series of sometriazolo[4,3-b]pyridazine derivatives were designed and synthesized. All the newlysynthesized compounds were evaluated for their cytotoxic activity at 10−5 M concentration towards 60 cancer cell lines according to USA NCI protocol. Most of the synthesized compounds showed good activity against SR (leukemia) cell panel. The most active compounds, 2f and 4a were subjected for further
设计并合成了一些新的三唑并[4,3- b ]哒嗪衍生物系列。 根据USA NCI方案,评估所有新合成的化合物在10 -5 M浓度下对60种癌细胞系的细胞毒活性。大多数合成的化合物显示出对SR(白血病)细胞的良好活性。活性最强的化合物2f和4a在5个剂量水平的筛选下进行了进一步评估,并在体外确定了其对c-Met激酶抑制的功效。通过分子对接探索了这些衍生物的结合方式。
Design, synthesis, and evaluation of anti-inflammatory and ulcerogenicity of novel pyridazinone derivatives
作者:K. A. M. Abouzid、N. A. Khalil、E. M. Ahmed、A. Esmat、A. M. Al-Abd
DOI:10.1007/s00044-011-9895-7
日期:2012.11
A series of pyridazinone-containing compounds were designed and synthesized as congeners for diclofenac, the most potent and widely used NSAID. The target compounds were evaluated for their anti-inflammatory activity on rat paw edema inflammation model against diclofenac as a reference compound. Seven of the tested compounds demonstrated more than 50% inhibition of carrageenan-induced rat paw edema at a dose 10 mg/kg. The compounds, 6-(2-bromophenylamino)pyridazin-3(2H)-one 2a and 6-(2,6-dimethylphenylamino)pyridazin-3(2H)-one 2e, displayed 74 and 73.5% inflammation-inhibitory activity, respectively, which is comparable to diclofenac (78.3%) at the same dose level after 4 h. The most active compounds as anti-inflammatory agents, 2a, 2e, and 6a, displayed fewer number of ulcers and milder ulcer score than indomethacin in ulcerogenicity screening.
Asymmetric [5+1] Annulation via C–H Activation/1,4-Rh Migration/Double Bond Shift Using a Transformable Pyridazine Directing Group
作者:Man Zhu、Yuyao Zhao、Xingwei Li、Bingxian Liu
DOI:10.1021/acs.orglett.3c00278
日期:2023.3.24
azacycles. In this work, we disclose a [5+1] annulation reaction using a novel transformable pyridazine directinggroup (DG). The DG-transformable reaction mode led to the construction of a new heterocyclic ring accompanied by transformation of the original pyridazine directinggroup via a C–H activation/1,4-Rh migration/doublebond shift pathway, affording the skeleton of pyridazino[6,1-b]quinazolines