The invention provides compounds of formulae (I), (II), (III), and (IV): and salts thereof, as well as pharmaceutical compositions comprising such compounds. The compounds are useful for treating cancers and Alzheimer's disease. ##STR00001##

The invention provides compounds of formulae (I), (II), (III), and (IV): and salts thereof, as well as pharmaceutical compositions comprising such compounds. The compounds are useful for treating cancers and Alzheimer's disease. ##STR00001##

The invention provides compounds and compositions that are useful for treating conditions including Alzheimer's disease, Parkinson's disease, diabetes, cancer, and psychotic disorders such as schizophrenia.

A polyaryl carboxylic fullerene derivative and its use in anti-coronavirus infection are disclosed. Specifically, a compound shown in formula A: fullerene-RR.sub.1R.sub.2R.sub.3R.sub.4R.sub.5 formula A, or a stereoisomer, prodrug, pharmaceutically acceptable salt, or pharmaceutically acceptable solvate of the compound is provided. The compound or a derivative thereof has promising application prospects in anti-coronavirus infection.

A polyaryl carboxylic fullerene derivative and its use in anti-coronavirus infection are disclosed. Specifically, a compound shown in formula A: fullerene-RR.sub.1R.sub.2R.sub.3R.sub.4R.sub.5 formula A, or a stereoisomer, prodrug, pharmaceutically acceptable salt, or pharmaceutically acceptable solvate of the compound is provided. The compound or a derivative thereof has promising application prospects in anti-coronavirus infection.