Chemical constituents of Morus alba (Sang-Bai-Pi), their tyrosinase inhibition, and UVA-induced photodamage protection.
Phytochemical investigations on the root bark of Morus alba (Sang-Bai-Pi) let to isolate twenty-five constituents (1-25), including two new flavonoids, (2S)-5,7,2',4'-tetrahydroxy-5'-C-β-D-glucopyranosylflavanone-7-O-glucoside (1) and cyclomethoxymoruol (2), and one new coumarin, esculetin 7-O-β-d-xylopyranosyl-(1 → 6)...