The invention relates to a novel
lithium butyrate proline eutectic salt and a preparation method and application thereof, and belongs to the technical field of medicines. According to the invention, the
lithium salt of n-
butyric acid and L-
proline are co-crystallized for the first time, and a new molecular structure with better stability and stronger
drug effect is provided. The novel
lithium butyrate proline eutectic salt disclosed by the invention can be used for remarkably inhibiting the activity of GSK3beta in
cell and animal models and effectively reducing the total
tau protein and the
phosphorylation level of the total
tau protein, so that the potential value for treating neurodegenerative diseases such as Alzheimer's
disease is shown; particularly, the compound has a wide application prospect in the aspects of reducing
neuroinflammation and improving the
neuroprotection effect. Meanwhile, the compound also has prevention and treatment values in GSK3beta-related diseases such as cancers, mental diseases and
diabetes mellitus.