Cycloartanes from the red alga Galaxaura sp. |
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| Authors: | Wei-Han Zhang Hong-Mao Zhong |
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| Institution: | 1. Hutchison Medipharma Ltd. , Shanghai, China;2. South China Sea Institute of Oceanography, Chinese Academy of Sciences , Guangzhou, China |
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| Abstract: | Six cycloartane triterpenes have been isolated from the red alga Galaxaura sp. The new structures (galaxaurols A–E) were determined to be methyl 3β-hydroxy-23-oxocycloart-24-en-29-oate (2), methyl 23(E)-3β-hydroxy-25-methoxycycloart-23-en-29-oate (3), methyl 23(E)-3β-hydroxycycloarta-23,25-dien-29-oate (4), 23(E)-25-methoxycycloart-23-en-3β,29-diol (5), and cycloart-24-en-3β,23α,29-triol (6), respectively. |
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| Keywords: | Galaxaura sp Galaxaurol Cycloartane triterpenes |
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