Four flavanocoumarins from the leaves of Litsea coreana LEVL.

Two new flavanocoumarins, 1 and 2, together with phyllocoumarin (3) and epiphyllocoumarin (4), were isolated from the leaves of Litsea coreana LEVL. in Anhui Province, China. The structures of 1-4 were elucidated by spectroscopic methods.