申请人:Fujisawa Pharmaceutical Co., Ltd.
公开号:US04414226A1
公开(公告)日:1983-11-08
1,4-naphthoquinone derivatives represented by the following general formula: ##STR1## (wherein R.sup.1 represents a hydrogen atom, a hydroxy group, a lower alkoxy group or an arylthio group, R.sup.2 represents a carboxy group, an esterified carboxy group or an amidated carboxy group or, when taken together, R.sup.1 and R.sup.2 form a group of ##STR2## R.sup.3 represents a hydrogen atom or a lower alkyl group, R.sup.4 represents a lower alkyl group, R.sup.5 represents a hydrogen atom or a halogen atom, and R.sup.6 represents a hydrogen atom, a lower alkyl group or a lower alkanoyl group), and the salts of the carboxy group thereof, which are novel compounds having an anticoccidium activity, and which can be obtained by synthesis or, partly, by cultivation of Streptomyces auranticolor.
1,4-萘醌衍生物由以下一般式代表:##STR1##(其中R.sup.1代表氢原子、羟基、较低的烷氧基或芳基硫基,R.sup.2代表羧基、酯化羧基或酰胺化羧基或者,当一起时,R.sup.1和R.sup.2形成##STR2##的基团,R.sup.3代表氢原子或较低的烷基基团,R.sup.4代表较低的烷基基团,R.sup.5代表氢原子或卤素原子,R.sup.6代表氢原子、较低的烷基基团或较低的烷酰基团),以及其羧基的盐,这些是具有抗球虫活性的新化合物,可以通过合成或部分通过栽培金黄链霉菌(Streptomyces auranticolor)获得。