Cepharadione A can be isolated from the roots of Piper betle Linn. Cepharadione A inhibits FMLP/CB induced elastase release by human neutrophils.

Ethyl 4-hydroxyphenylacetate is a selective inhibitor of monoamine oxidase A.

MI-3454 is an orally active, selective and potent inhibitor of Menin-MLL1 interaction that inhibits the proliferation and induces differentiation of acute leukemia cells with MLL1 translocation or NPM1 mutation.