The application discloses a kind of spirocyclic
amino acid skeleton compounds, it is compound shown as formula I with structural general formula, there are 29 kinds of compounds.The application also discloses the preparation method of spirocyclic
amino acid skeleton compound.The application also discloses the application of spirocyclic
amino acid skeleton compound in as or preparation herbicide, in the application in
weed control or preparation in
weed control preparation, the control object or
weed of the herbicide is selected from the group consisting of barnyard grass, dogtail grass, Chinese alpine paper, crabgrass and other monocotyledonous plants, and purslane, amaranthus retroflexus, goosefoot,
solanum nigrum,
abutilon theophrasti and other dicotyledonous plants.Spirocyclic amino acid skeleton compound of the application is obtained after
molecular modification to microsphaeropsis ochracea ketonic acid, and
experimental research shows that the
weed control effect is good, especially
compound C3,
compound C22,
compound C23, the growth of
crop has no influence basically.Spirocyclic amino acid skeleton compound of the application is suitable for industrial production, and has great application potential.