Title: Bodwell Graham, et al. An Inverse Electron-Demand Diels-Alder-Based Total Synthesis of Urolithin M7. Synlett. 2011 (15): 2245.
Title: Kubo I, et al. 2-Hydroxy-4-methoxybenzaldehyde: a potent tyrosinase inhibitor from African medicinal plants. Planta Med. 1999 Feb;65(1):19-22.