Oxygenated Sesquiterpenes From the Indo-Pacific Nudibranch Ardeadoris rubroannulata: Structure Revision of Pu'ulenal

Seven oxygenated sesquiterpenes 1 to 7 each with a drimane framework were isolated from an organic extract of the nudibranch Ardeadoris rubroannulata collected from Eastern Australia. The structure of pu'ulenal 2 was revised by 1D NOESY, providing a 9Z configuration, while isopu'ulenal 3 has the 9E configuration previously ascribed to pu'ulenal.

Automated summary

Seven oxygenated sesquiterpenes were isolated from an organic extract of the nudibranch Ardeadoris rubroannulata collected from Eastern Australia. The structure of pu'ulenal 2 was revised to a 9Z configuration, while isopu'ulenal 3 was found to have the 9E configuration previously attributed to pu'ulenal.