Supramolecular compound as well as preparation method and application thereof

According to the supramolecular compound and the preparation method and application thereof, the structural formula of the supramolecular compound is CB-EGx-L-Guest, CB is a host molecule, and cucurbituril is selected; eGx is a connecting chain segment; l is a dynamic covalent bond; guest is a guest molecule. The preparation method comprises the following steps: synthesizing a conjugate molecule of Guest-activated ester; the preparation method comprises the following steps: synthesizing a conjugate molecule of Guest-L; the preparation method comprises the following steps: synthesizing a conjugate molecule of Guest-L-activated ester; synthesizing a conjugate molecule of the CB-EGx; the preparation method comprises the following steps: mixing conjugate molecules of CB-EGx and conjugate molecules of Guest-L-activated ester to obtain a crude product containing a supramolecular compound; and purifying to obtain the supramolecular compound. The supramolecular compound disclosed by the invention has a self-clathrati