BETA-CARBOLINE, DIHYDRO-BETA-CARBOLINE AND TETRAHYDRO-BETA-CARBOLINE ALKALOID DERIVATIVES AND METHOD FOR PREPARING SAME AND USE IN ASPECTS OF PREVENTING AND TREATING PLANT VIRUSES, FUNGICIDES AND INSECTICIDES

摘要

The present invention relates to ² -carboline, dihydro- ² -carboline and tetrahydro- ² -carboline alkaloid derivatives (I), a method for preparing the same and their use as fungicide, insecticide and in preventing and treating plant virus infections. For the meaning of each group in formula (I), see the description. The ² -carboline, dihydro- ² -carboline and tetrahydro- ² -carboline alkaloid derivatives of the present invention show a particularly pronounced anti-plant virus activity, and also have fungicidal and insecticidal activities.