Pachyclavulariaenones A-C, three novel diterpenoids from the soft coral Pachyclavularia violacea

Three novel diterpenoids named pachyclavulariaenones A-C (1-3) have been isolated from the soft coral Pachyclavularia violacea. Their structures have been established by spectroscopic methods. The structure of 3 was further confirmed by a single crystal X-ray analysis. (C) 2001 Elsevier Science Ltd. All rights reserved.