## Abstract Four new cuparene‐derived sesquiterpenes, laureperoxide (**1**), 10‐bromoisoaplysin (**2**), isodebromolaurinterol (**3**), and 10‐hydroxyisolaurene (**4**), together with seven known, related sesquiterpenes, **5**–**11**, have been isolated from the red alga __Laurencia okamurai.__ The
Cuparene-Derived Sesquiterpenes from the Chinese Red Alga Laurencia okamurai Yamada
✍ Scribed by Shui-Chun Mao; Yue-Wei Guo
- Publisher
- John Wiley and Sons
- Year
- 2005
- Weight
- 13 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Together with five known sesquiterpenes, EtOH extraction of __Laurencia saitoi__ yielded four new compounds, including three sesquiterpenes and one norsesquiterpene derivative. Their structures and relative configurations were elucidated by spectroscopic methods, including 1D‐ and 2D‐NM
## Abstract Four new halogenated sesquiterpenes, 10‐bromo‐3‐chloro‐2,7‐epoxychamigr‐9‐en‐8__α__‐ol (**1**), 2,10__β__‐dibromochamigra‐2,7‐dien‐9__α__‐ol (**2**), (9__S__)‐2‐bromo‐3‐chloro‐6,9‐epoxybisabola‐7(14),10‐diene (**3**), and (9__R__)‐2‐bromo‐3‐chloro‐6,9‐epoxybisabola‐7(14),10‐diene (**4**
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## Abstract Two new halogenated sesquiterpenes, (8__β__)‐10‐bromo‐3‐chloro‐2,7‐epoxychamigr‐9‐en‐8‐ol (**1**) and 2‐bromo‐3‐chlorobisabola‐7(14),11‐diene‐6,10‐diol (**3**), and one new phytol‐derived diterpene, 2,3‐epoxyphytyl acetate (**4**), along with __cis__‐ and __trans__‐1‐methylcyclohexane‐1