Neue 2-Halogen-3-phenoxy-1,4-naphthochinon-Derivate der Formel (I),
in welcher
R¹-R⁵ und X die in der Beschreibung angegebene Bedeutung haben, ihre Verwendung zur Bekämpfung von Schädlingen und neue Zwischenprodukte.
Die neuen Verbindungen der Formel (I) können nach Analogieverfahren hergestellt werden, z.B. indem man geeignete Phenole mit 2,3-Dihalogennaphthochinonen umsetzt oder geeignete 2-Phenoxy-1,4-naphthochinone halogeniert. Die 2-Phenoxy-1,4-naphthochinone sind auch neu und durch die Formel (IV) dargestellt und können auch nach Analogieverfahren hergestellt werden, z.B. aus geeigneten Phenolen und 2-Halogen-1,4-naphthochinon.
A small library of 2-phenoxy-1,4-naphthoquinone and 2-phenoxy-1,4-anthraquinone derivatives was initially developed to optimize the antitrypanosomatid profile of the multitarget hit compound B6 (1). The whole series was evaluated against the three most important human trypanosomatid pathogens (Trypanosoma brucei rhodesiense, Trypanosoma cruzi, and Leishmania donovani), and two compounds (14 and 21) showed good activity, despite a concomitant mammalian cytotoxicity. Furthermore, a subset also inhibited the glycolytic TbGAPDH enzyme in vitro. In light of these results and aware of the antitumor properties of quinones, the anticancer potential of some selected derivatives was investigated. Intriguingly, the tested compounds displayed antitumor activity, while being less toxic against noncancerous cells. The observed cytotoxic potency was ascribed to a multitarget mechanism of action accounting for hGAPDH inhibition and mitochondrial toxicity. Overall, the development of further derivatives, able to finely modulate multiple pathways of cancer or parasite cell metabolism, might lead to more effective treatments against these devastating diseases.
COMPOSITIONS AND METHODS FOR TREATMENT OF PROSTATE CARCINOMA
申请人:Pellficure Pharmaceuticals, Inc.
公开号:US20170283374A1
公开(公告)日:2017-10-05
Disclosed herein are 1,4-naphthoquinone analogs, pharmaceutical compositions that include one or more of such 1,4-naphthoquinone analogs, and methods of treating and/or ameliorating diseases and/or conditions associated with a cancer, such as prostate cancer with such 1,4-naphthoquinone analogs. Also included are combination therapies wherein a 1,4-naphthoquinone analog disclosed herein, and a hormone therapy agent are provided to a subject suffering from a condition such as cancer.
Novel one-pot synthesis of a library of 2-aryloxy-1,4-naphthoquinone derivatives. Determination of antifungal and antibacterial activity
作者:Katherine Chaves-Carballo、Guy V. Lamoureux、Alice L. Perez、Alexandre Bella Cruz、Valdir Cechinel Filho
DOI:10.1039/d2ra01814d
日期:——
development of new antibiotics and inexpensive antifungals is an important field of research. Based on the privileged pharmacophore of lawsone, a series of phenolic ether derivatives of 1,4-naphthoquinone were synthesized easily in one step in reasonable yields. All the new compounds were characterized and tested as potential antifungal and antibacterial agents against Candida albicans, Escherichia coli