Methods for preparing a salt of urolithin A and, in turn, urolithin A. Combining in an alkaline aqueous solution a copper-containing catalyst, 2-bromo-5-hydroxybenzoic acid, and resorcinol produces a salt of urolithin A. Urolithin A has been prepared by protonating a salt of the compound.

Disclosed are methods for preparing a salt of urolithin A and, in turn, urolithin A. The methods are advantageous for the large-scale preparation of urolithin A or a pharmaceutically acceptable salt thereof.

Disclosed are methods for preparing a salt of urolithin A and, in turn, urolithin A. The methods are advantageous for the large-scale preparation of urolithin A or a pharmaceutically acceptable salt thereof.