A new rearranged abietane, incanone, together with a known abietane di
terpenoid, sugiol, were isolated from the whole plant of Caryopteris i
ncana. On the basis of the HRMS- and NMR data incanone was determined
as 11,12,14,16-tetrahydroxyl-17(15 --> 16)-abeo-abieta-8,11,13-trien-o
ne. Incanone showed cytotoxic activity against human leukaemia cells.
Copyright (C) 1997 Elsevier Science Ltd.