Compounds of the formula: ##STR1## wherein X is oxygen or sulfur; Z is oxygen or sulfur; R is pyridyl optionally substituted with 1 to 3 substituents independently selected from halogen, lower alkyl or lower alkoxy optionally substituted with 1 to 3 of the same or different halogen atoms or nitro; R.sup.1 is lower alkyl; and R.sup.2 is a 5- or 6-membered heterocyclic ring containing 1 to 3 ring nitrogens and the remainder of the ring atoms carbon atoms, a quinoline ring or a phenyl ring, all optionally substituted with 1 to 3 substituents independently selected from halogen, trihalomethyl, lower alkyl or lower alkoxy are fungicidal.
分子式为##STR1##的化合物,其中X是氧或
硫;Z是氧或
硫;R是
吡啶基,可选地被1到3个取自卤素、低烷基或低烷氧基的取代基独立取代,这些取代基可选地被1到3个相同或不同的卤素原子或硝基取代;R.sup.1是低烷基;R.sup.2是含有1到3个环内氮原子和其余环原子为碳原子的5-或6元杂环,
喹啉环或苯环,所有这些环可选地被1到3个独立选择的卤素、三卤甲基、低烷基或低烷氧基取代,具有杀真菌作用。