Made available in DSpace on 2022-04-29T08:46:54Z (GMT). No. of bitstreams: 0 Previous issue date: 1998-01-01; Explants of Maytenus aquifolium were induced to form callus and, subsequently, suspension cultures. The isolation of natural products from callus led to the identification of the cytotoxic triterpene quinonemethides, maitenin (1) and 22β-hydroxymaitenin (2). A rapid, sensitive and reliable reversed-phas...