Acetoxyl ursolic acid piperazine compound containing isopropanolamine substructure, and preparation method and application of acetoxyl ursolic acid piperazine compound

The invention relates to an acetoxyl ursolic acid piperazine compound containing an isopropanolamine substructure, and a preparation method and application of the acetoxyl ursolic acid piperazine compound. The compound has a structure disclosed in a following general formula (I): an ursolic acid compound is taken as a basis, a nitrogen-containing fragment is introduced into the system to synthesize one series of 3[beta]-acetoxyl ursolic acid-28-piperazine compound containing the isopropanolamine substructure, and the compound has a good inhibition effect on plant pathogenic bacteria, includingxanthomonas oryzaepv. oryzae, xanthomonas axonopodis pv. Citri and the like. 本发明涉及一类含异丙醇胺亚结构的乙酰氧基熊果酸哌嗪类化合物及其制备方法和应用。该化合物具有如通式(I)所示的结构：本发明以熊果酸类化合物为基础，将含氮片段引入到此体系中，合成一系列含异丙醇胺亚结构的3β-乙酰氧基熊果酸-28-哌嗪类化合物，该化合物对植物病原细菌如水稻白叶枯病菌、柑橘溃疡病菌等具有良好的抑制效果。