New compounds having the formula ##STR1## in which R is alkyl, phenyl, benzyl or p-chlorophenyl and R.sub.1 and R.sub.2 are hydrogen, halo, trifluoromethyl, lower alkyl, nitro, cyano or thiocyano. The compounds are useful as biocides, particularly as bactericides against Staphylococcus aureus.
新的化合物具有以下结构式##STR1##其中R为烷基、苯基、苄基或对
氯苯基,R.sub.1和R.sub.2为氢、卤素、三
氟甲基、低烷基、硝基、
氰基或
硫氰基。这些化合物可用作
生物杀剂,特别是作为针对
金黄色葡萄球菌的杀菌剂。