Sesqui- and di-terpenoids from the liverwort Jungermannia vulcanicola
摘要:
A new chiloscyphane-type sesquiterpenoid, dihydrochiloscypholone, was isolated from the liverwort Jungermannia vulcanicola, together with the previously known chiloscypholone. Another collection of J. vulcanicola gave a new labdane-type diterpenoid along with the previously known ent-13-epi-manool. Their structures were determined by extensive NMR techniques and chemical transformation. There are at least three chemo-types of J. vulcanicola.