The present invention provides compounds of formula (I)wherein G1, G2, G3, G4, G5, G6, Y1, Y2, Y3, Y4, Y5 and Y6 and p and q are as defined in the claims. The invention further relates to compositions which comprise these compounds and to their use in agriculture or horticulture for controlling or preventing infestation of plants by phytopathogenic microorganisms, preferably fungi.本發明提供式(I)化合物其中Gl、G2、G3、G4、G5、G6、Y1、Y2、Y3、Y4、Y5及Y6及p及q係如申請專利範圍中所定義。本發明進一步係關於包含此等化合物之組成物且係關於其用於農業或園藝中以控制或預防植物感染植物病原性微生物、較佳真菌之用途。