13-EPI-HOMOVERRUCOSANE DERIVATIVES AND OTHER DITERPENES FROM PLAGIOCHILA (HEPATICAE)

Four new 13-epi-homoverrucosane-type diterpenes: 13-epi-homoverrucosan -5 beta,6 beta-diol 2; 13-epi-homoverrucosan-5 beta,6 beta-diol-8-one 3; 13-epi-homoverrucosan-6 beta-ol-5-one 4; 13-epi-homoverrucosan-5 be ta,6 beta,8 beta-triol 5, along with the known 13-epi-homoverrucosan-5 beta-ol 1 and two known fusicoccane-type diterpenes, fusicogigantone A 6 and B 7, were isolated from Plagiochila cristata collected from th e wild. Only the two fusicoccane-type diterpenes were isolated from Pl agiochila adianthoides grown in axenic culture. All structures were el ucidated by spectral data.