作者:N. G. Kandile、H. T. Zaky、M. I. Mohamed、Abdel-Sattar S. Hamad Elgazwy
DOI:10.1002/hc.10157
日期:——
4,6-Disubstituted pyridazin-3(2H) thiones 3a–f were prepared by thiation of 4,6-disubstituted pyridazin-3(2H)-one 1a–f either with thiourea or phosphoruspentasulphide. The reactivity of 3a-f towards nucleophilic and electrophilic species under different conditions was studied successively. The structure of the products was confirmed by NMR and mass spectral data. Mechanisms for their formation are
Kandile, Nadia G.; Ahmed, Effat A., Acta Chimica Hungarica, 1990, vol. 127, # 6, p. 829 - 835
作者:Kandile, Nadia G.、Ahmed, Effat A.
DOI:——
日期:——
KANDILE, NADIA G.;AHMED, EFFAT A., ACTA CHIM. HUNG., 127,(1990) N, C. 829-835
作者:KANDILE, NADIA G.、AHMED, EFFAT A.
DOI:——
日期:——
Further studies on 2-arylacetamide pyridazin-3(2H)-ones: Design, synthesis and evaluation of 4,6-disubstituted analogs as formyl peptide receptors (FPRs) agonists
作者:Maria Paola Giovannoni、Igor A. Schepetkin、Agostino Cilibrizzi、Letizia Crocetti、Andrei I. Khlebnikov、Claes Dahlgren、Alessia Graziano、Vittorio Dal Piaz、Liliya N. Kirpotina、Serena Zerbinati、Claudia Vergelli、Mark T. Quinn
DOI:10.1016/j.ejmech.2013.03.066
日期:2013.6
Formylpeptidereceptors (FPRs) play an essential role in the regulation of endogenous inflammation and immunity. In the present studies, a large series of pyridazin-3(2H)-one derivatives bearing an arylacetamide chain at position 2 was synthesized and tested for FPRagonist activity. The pyridazin-3(2H)-one ring was confirmed to be an appropriate scaffold to support FPRagonist activity, and its modification
甲酰肽受体 (FPR) 在调节内源性炎症和免疫中起重要作用。在本研究中,合成了大量在 2 位带有芳基乙酰胺链的哒嗪-3(2 H )-one 衍生物并测试了 FPR 激动剂活性。哒嗪-3(2 H )-one 环被证实是支持 FPR 激动剂活性的合适支架,其在 4 和 6 位的修饰导致鉴定出额外的活性激动剂,从而诱导细胞内 Ca 2+在HL-60 细胞转染了 FPR1、FPR2 或 FPR3。七种甲酰肽受体 1 (FPR1) 特异性和几种混合的 FPR1/FPR2 双激动剂被鉴定为低微摩尔 EC 50值。此外,这些激动剂还激活人类中性粒细胞,诱导细胞内 Ca 2+通量和趋化性。最后,分子对接研究表明,最有效的哒嗪-3(2 H )-ones 分别在 FPR1 和 FPR2 配体结合位点与 fMLF 和 WKYMVM 肽的最佳对接姿势重叠。因此,哒嗪酮类化合物代表了用于进一步开发选择性和/或有效 FPR