PYRIDAZINE DERIVATIVES USEFUL AS FUNGICIDES AND FOR THE TREATMENT OF CANCER

摘要

The present invention relates to novel pyridazine derivatives of formula (I) as active ingredients which have microbiocidal activity, in particular fungicidal activity: formula (I) wherein R1 is C1-C6alkyl, C1-C6haloalkyl or C3-C6cycloalkyl; R2 is hydrogen or an optionally substituted alkyl, aryl or heteroaryl; R3 is hydrogen, C1-C6alkyl or C1-C6haloalkyl; R4 is hydrogen, C1-C6alkyl or C1-C6haloalkyl; or R3 and R4 together can be part of a carbocyclic or heterocyclic 3- to 8-membered ring; R5 is optionally substituted aryl or heteroaryl; and R6 is hydroxy, halogen, C1-C6alkoxy, C1-C6haloalkoxy, C1-C6alkylthio or C1-C6haloalkylthio; or an agrochemically usable salt form thereof.