In this study, a series of 22 ring-substituted 1-hydroxynaphthalene-2-carboxanilides were prepared and characterized. Primary in vitro screening of the synthesized compounds was performed against Mycobacterium marinum, Mycobacterium kansasii and Mycobacterium smegmatis. The compounds were also tested for their activity related to inhibition of photosynthetic electron transport (PET) in spinach (Spinacia
Synthesis of substituted 1-hydroxy-2-naphthanilides as potential cestodicidal agents
作者:S. K. Dubey、A. K. Singh、H. Singh、S. Sharma、R. N. Iyer、J. C. Katiyar、P. Goel、A. B. Sen
DOI:10.1021/jm00209a020
日期:1978.11
A series of substituted 1-hydroxy-2-naphthanilides 4--14 has been synthesized by treating 1-hydroxy-2-naphthoic acids 2 with substituted anilines 3. The nitronaphthanilides, on reduction and subsequent treatment with thiophosgene, gave the corresponding substituted 2-naphthanilide isothiocyanates 30--33. Substitution of the chlorine of 8 by various cyclic amines gave 3'-nitro-4'-substituted 1-hydroxy-2-naphthanilides 15--21. Various 3-aryl-4-oxo-2,3-dihydro-1,3-naphthoxazine-2-thiones 34-43 and 3 aryl-2,4-dioxo-2,3-dihydro-1,3-naphthoxazines 44--51 have been prepared by reacting the corresonding naphthanilides with thiophosgene and ethyl chloroformate, respectively. All the compounds were tested for their cestodicidal activity against Hymenolepis nana infection in rats; 30 was found to be the most active compound of the series, showing 100% clearance of infection at a single oral dose of 7.5 mg/kg.
KISHIMOTO SATOSHI; OKUSHI TSUNEO; HIRASHIMA TSUNEAKI, SCI. AND IND., 61,(1987) N 3, 84-88
phosphate buffer pH 7.2 – dimethyl sulfoxide (DMSO) mixed medium (9:1; v/v). All compounds exhibited similar voltammetric behavior with one irreversible anodic signal in the range 100-300 mV corresponding to the oxidation of hydroxyl group on the naphthalene moiety. A shift of the oxidation potential was caused solely by electron donating or withdrawing effects of substituents and their position on the
在磷酸盐缓冲液pH 7.2-二甲基亚砜(DMSO)混合介质(9:1; v / v)中,在玻璃碳电极上通过循环伏安法研究了22种新型抗分枝杆菌药物1-羟基萘-2-甲酰苯胺。所有化合物均表现出相似的伏安行为,其中一个不可逆的阳极信号在100-300 mV的范围内,对应于萘部分上的羟基氧化。氧化电位的移动仅由取代基的电子给予或吸收作用及其在苯部分上的位置引起。简要概述了研究介质中的氧化机理。氧化电势的值与计算得出的Hammettσ取代基常数具有很好的线性相关性。对于所有活性化合物,氧化电位与MIC或IC之间的关系详细研究了从体外筛选获得的50个值。先前针对三种分枝杆菌病原体进行了合成化合物的初步体外筛选。此外,在以前的出版物中测试了它们与菠菜叶绿体中光合作用电子转运(PET)抑制相关的活性。首次进行了针对结核分枝杆菌的体外筛选,其中最有效的是1-羟基-N-(3-三氟甲基苯基)萘-2-甲酰胺(MIC