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.