Chem Pharm Bull (Tokyo). 2003 Sep; 51(9): 1095-7.

A novel biflavonoid from roots of Glycyrrhiza uralensis cultivated in China.

Bai H, Li W, Koike K, Dou D, Pei Y, Chen Y, Nikaido T.

School of Chinese traditional medicine, Shenyang Pharmaceutical University, China.

A novel biflavonoid named licobichalcone was isolated from the roots of Glycyrrhiza uralensis cultivated in China, along with twelve known compounds, including five chalcones, two isoflavones, two flavanones, two flavones and one pterocarpan. Their structures were respectively elucidated on the basis of chemical and spectroscopic evidence.