| 摘要 |
Novel derivatives of the formula <IMAGE> in which R, R<1>, R<2>, R<3> and R<4> are as defined in the description, and their acid addition salts, their preparation, fungicidal compositions containing these compounds as active substances, and the use of such compounds or compositions for controlling fungi in agriculture and horticulture, furthermore agents which can be used in the preparation of compounds of the formula I. |
