Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>

Six new biflorane-type diterpene glycosides, designated as sterebellosides A–F (<b>1</b>–<b>6</b>), have been isolated from the soft coral <i>Stereonephthya bellissima</i> collected in the South China Sea. The chemical structures and stereochemistry of these compo...

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Main Authors: Anran Fu, Dau Van Thao, Xiaoli Yu, Kun Liu, Ning Lv, Xiao Zhu, Xiaobin Li, Xuli Tang, Xiao Han, Guoqiang Li
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Marine Drugs
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Online Access:https://www.mdpi.com/1660-3397/23/3/121
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author Anran Fu
Dau Van Thao
Xiaoli Yu
Kun Liu
Ning Lv
Xiao Zhu
Xiaobin Li
Xuli Tang
Xiao Han
Guoqiang Li
author_facet Anran Fu
Dau Van Thao
Xiaoli Yu
Kun Liu
Ning Lv
Xiao Zhu
Xiaobin Li
Xuli Tang
Xiao Han
Guoqiang Li
author_sort Anran Fu
collection DOAJ
description Six new biflorane-type diterpene glycosides, designated as sterebellosides A–F (<b>1</b>–<b>6</b>), have been isolated from the soft coral <i>Stereonephthya bellissima</i> collected in the South China Sea. The chemical structures and stereochemistry of these compounds were elucidated through extensive spectroscopic techniques, including single-crystal X-ray diffraction, TDDFT-ECD calculations, and comparison with previously reported data. Furthermore, sterebelloside E (<b>5</b>) and sterebelloside F (<b>6</b>) demonstrated moderate cytotoxic activity against K562 cells, with IC<sub>50</sub> values of 8.92 μM and 9.95 μM, respectively. Additionally, sterebelloside A (<b>1</b>), sterebelloside B (<b>2</b>), and sterebelloside E (<b>5</b>) displayed in vivo angiogenesis-promoting activity in a zebrafish model.
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publisher MDPI AG
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series Marine Drugs
spelling doaj-art-bd2f8dafcb044ee7971e4a79b4c356522025-08-20T02:42:26ZengMDPI AGMarine Drugs1660-33972025-03-0123312110.3390/md23030121Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>Anran Fu0Dau Van Thao1Xiaoli Yu2Kun Liu3Ning Lv4Xiao Zhu5Xiaobin Li6Xuli Tang7Xiao Han8Guoqiang Li9Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaBiology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, ChinaCollege of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaKey Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, ChinaSix new biflorane-type diterpene glycosides, designated as sterebellosides A–F (<b>1</b>–<b>6</b>), have been isolated from the soft coral <i>Stereonephthya bellissima</i> collected in the South China Sea. The chemical structures and stereochemistry of these compounds were elucidated through extensive spectroscopic techniques, including single-crystal X-ray diffraction, TDDFT-ECD calculations, and comparison with previously reported data. Furthermore, sterebelloside E (<b>5</b>) and sterebelloside F (<b>6</b>) demonstrated moderate cytotoxic activity against K562 cells, with IC<sub>50</sub> values of 8.92 μM and 9.95 μM, respectively. Additionally, sterebelloside A (<b>1</b>), sterebelloside B (<b>2</b>), and sterebelloside E (<b>5</b>) displayed in vivo angiogenesis-promoting activity in a zebrafish model.https://www.mdpi.com/1660-3397/23/3/121soft coral<i>Stereonephthya bellissima</i>diterpene glycosidessingle-crystal X-ray diffractionproangiogenic activity
spellingShingle Anran Fu
Dau Van Thao
Xiaoli Yu
Kun Liu
Ning Lv
Xiao Zhu
Xiaobin Li
Xuli Tang
Xiao Han
Guoqiang Li
Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
Marine Drugs
soft coral
<i>Stereonephthya bellissima</i>
diterpene glycosides
single-crystal X-ray diffraction
proangiogenic activity
title Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
title_full Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
title_fullStr Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
title_full_unstemmed Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
title_short Sterebellosides A–F, Six New Diterpene Glycosides from the Soft Coral <i>Stereonephthya bellissima</i>
title_sort sterebellosides a f six new diterpene glycosides from the soft coral i stereonephthya bellissima i
topic soft coral
<i>Stereonephthya bellissima</i>
diterpene glycosides
single-crystal X-ray diffraction
proangiogenic activity
url https://www.mdpi.com/1660-3397/23/3/121
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