Meyeniihydantoins A–C, three novel hydantoin derivatives from the roots of Lepidium meyenii Walp.

A new natural product meyeniihydantoin A ( 1 ), and two new hydantoin derivatives, named meyeniihydantoins B–C ( 2 – 3 ) were isolated from the roots of Lepidium meyenii . Their structures were characterized by means of extensive spectroscopic analyses. The isolated meyeniihydantoins were evaluated for their cytotoxicities on NB4, A549, SHSY5Y, PC3 and MCF7 human cancer cell lines. [ABSTRACT FROM AUTHOR]