Flavonol derivative containing triazolopyridine as well as preparation method and application of flavonol derivative

The invention discloses a flavonol derivative containing triazolopyridine. The flavonol derivative is characterized in that the structural formula is shown as a formula S: # imgabs0 #, wherein R1 is hydrogen, alkyl or alkoxy; r2 is one or more than one halogen, alkyl or alkoxy on ortho-, meta-and para-three sites on a benzene ring; n is 3 or 4; a plant fungus inhibition activity test is carried out on the flavonol derivative containing triazolopyridine, and it is proved that the flavonol derivative containing triazolopyridine has good bacteriostatic activity and can be applied to preparation of a plant germ inhibition agent. 本发明公开了一种含三唑并吡啶的黄酮醇衍生物，其特征在于：结构式如式S所示：#imgabs0#其中：R1为氢、烷基或烷氧基；R2为苯环上邻、间、对三位上含有一个或一个以上卤素、烷基或烷氧基；n为3或4；本发明通过对所公开的含三唑并吡啶的黄酮醇衍生物进行抑植物真菌活性测试，证明本发明公开的含三唑并吡啶的黄酮醇衍生物有很好的抑菌活性，可应用于制备抑制植物病菌药剂。