Substituted phenylammonium chlorides react with cyanamide to give the corresponding phenylguanidines which on treatment with chloroformate esters give N-subst.phenyl-N,N"-guanidinedicarboxylic acid esters. All substances prepared have been tested for their anthelmintic activity against the model helminths Nippostrongylus brasilienses and Hymenolepis nana var. fraterna. The most significant activity has been found with diethyl N-(4-nitrophenyl)-N,N"-guanidinedicarboxylate. In pesticidal screening the compounds have shown fungicidal activity and particularly ovicidal activity against Tetranychus urticae which activity is increased with the compounds having a nitro group in the benzene ring.
苯基铵氯化物与氰胺反应生成相应的苯基胍,经氯甲酸酯处理后得到N-取代苯基-N,N"-胍二羧酸酯。所有制备的物质均已对模拟寄生虫尼波强气虫和小绦虫fraterna进行了驱虫活性测试。其中,二乙基N-(4-硝基苯基)-N,N"-胍二羧酸酯表现出最显著的活性。在杀虫剂筛选中,这些化合物表现出杀真菌活性,特别是对网纹叶螨具有卵杀活性,这种活性随着苯环中含有硝基基团的化合物而增加。