A series of N‐substituted pyrazolederivatives have been synthesized and tested for their anticancer effect on the HL‐60 leukaemia cell line. Four were active both in cell‐growth inhibition and in inducing apoptosis. The inhibition of cell growth mainly reflects a compound‐induced reduction in the number of cells in phases from S to M, whereas the induction of apoptosis involves inhibition of expression
已经合成了一系列 N 取代的吡唑衍生物,并测试了它们对 HL-60 白血病细胞系的抗癌作用。四种在细胞生长抑制和诱导细胞凋亡方面均具有活性。细胞生长的抑制主要反映了化合物诱导的 S 到 M 期细胞数量的减少,而细胞凋亡的诱导涉及 Bcl-2 表达的抑制和 Bax 表达的增强,从而降低了促凋亡半胱天冬酶的激活3.最后,对骨髓性白血病患者的肿瘤细胞进行的初步实验表明,化合物4c、4l、4m和4n确实能够诱导细胞凋亡。
Synthesis and antimicrobial activity of heterocyclic ionone-like derivatives
作者:M Anzaldi
DOI:10.1016/s0223-5234(99)00209-3
日期:1999.10
A number of heterocyclic ionone-like derivatives 5 were prepared with appropriate bifunctional reagents by one-pot cyclisation of 3-dimethylamino-5-(2,6,6-trimethyl-2-cyclohexen-1-yl)-2,4-pentadienal 3a, which was, in turn, obtained from alpha-ionone with N,N-dimethylformamide/phosphorus oxychloride. All compounds 5 possess remarkable activity against the selected Gram-positive, Gramnegative bacterial strains and against Candida albicans. Derivatives 5a2 and 5a6, acting at a high level especially against both Propionibacterium acnes and Staphylococcus aureus, could play a potential role in the treatment of acne and related skin disorders. (C) 1999 Editions scientifiques et medicales Elsevier SAS.
Synthesis and biological evaluation of novel heterocyclic ionone-like derivatives as anti-inflammatory agents
Five- and six-membered heterocyclic ionone-like derivatives 4-6 have been synthesised in one step and with good yield from the key intermediate 3a and appropriate bifunctional reagents. Four were active as inhibitors of the respiratory burst of human neutrophils without affecting cell viability. The two most active compounds (5a,d) tested in neutrophil migration assays, were also found to be potent inhibitors of neutrophil chemotactic responsiveness. These two molecules could be considered as lead compounds of new drugs which can be an effective tool to treat psoriasis and related neutrophilic dermatoses. (c) 2006 Elsevier Ltd. All rights reserved.