@article{oai:u-ryukyu.repo.nii.ac.jp:02019514, author = {Koyama, Tomoyuki and Higa, Tatsuo and Tanaka, Junichi}, issue = {112}, journal = {琉球大学理学部紀要}, month = {Sep}, note = {In our investigation on the secondary metabolites of Okinawan coral reef invertebrates, a series of bisabolene-class sesquiterpenoids were isolated from a sponge Halichondria sp. collected at Kerama Islands. After spectroscopic analyses of the isolates, new theonellin analogs 5-7 were elucidated in addition to the identification of known theonellins 1-4 and 8-9. The experimental evidence is provided in this note.}, pages = {23--29}, title = {Dehydroisocyanotheonellin from a sponge Halichondria sp.}, year = {2022} }