The composition comprises certain 5-acylsalicylanilides and more particularly comprises the compounds encompassed by the following generic formula: ##STR1## Where Z is a substituted phenyl ring of from 6 to 30 carbon atoms including substituents, R is a substituted or unsubstituted alkyl or phenyl group of from 2 to 30 carbon atoms including substituents and M is a radical selected from the group consisting of --C.dbd.N,--F,--NO.sub.2,--H, lower alkyl or lower haloalkyl. The preferred compositions of the invention have a partition coefficient greater than 4 and the substituted moieties in the phenyl ring of the Z group have a combined overall electron withdrawing effect on the phenyl ring of the Z group. The method of the invention comprises contacting the microorganism with a sufficient concentration of the above composition for a sufficient time to inhibit the growth of the microorganism. The above compositions are effective antiseptics against a wide range of microorganisms, especially bacteria, and the compositions surprisingly are especially effective against microorganisms prevalent in dental plaque.
该组合物包括某些5-酰基
水杨酰苯胺,并且更特别地包括以下通用公式所包含的化合物:##STR1## 其中Z是一个含有取代基的苯环,碳原子数为6至30,包括取代基;R是一个含有取代基或未取代基的烷基或苯基,碳原子数为2至30,包括取代基;M是从--C.dbd.N,--F,--NO.sub.2,--H,低烷基或低卤代烷基组成的基团。本发明的优选组合物具有大于4的分配系数,并且Z组的苯环中的取代基在Z组的苯环上具有综合的电子吸引效应。本发明的方法包括将微
生物与上述组合物的足够浓度接触足够时间以抑制微
生物的生长。上述组合物对各种微
生物,特别是细菌,具有有效的杀菌作用,并且这些组合物出人意料地对牙菌斑中常见的微
生物尤为有效。