Proline‐Containing Dipeptides from a Marine Sponge of a <i>Callyspongia</i> Species
Bin YangGraduate School of Chinese Academy of Sciences, Beijing 100049, P. R. ChinaJunde DongKey Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China, (phone: +86-20-89023244; fax: +86-20-84451672)Xuefeng Zhoufax: +86-20-84451672)Xian‐Wen YangKey Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China, (phone: +86-20-89023244; fax: +86-20-84451672)Kyung Jin LeeInvertebrate Research Division, National Institute of Biological Resources, Environmental Research Complex, Incheon 404170, KoreaLishu WangJilin Provincial Academy of Chinese Medicine Sciences, Changchun 130021, P. R. ChinaSi ZhangKey Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China, (phone: +86-20-89023244; fax: +86-20-84451672)Yonghong LiuKey Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, P. R. China, (phone: +86-20-89023244; fax: +86-20-84451672)
2009en
ABI
Abstract
Abstract magnified image A detailed analysis of the chemical constituents of a marine sponge of Callyspongia sp. was performed. A new proline‐containing dipeptide, callyspongidipeptide A (cyclo ‐ (( S )‐Pro ‐ 8 ‐ hydroxy ‐ ( R )‐Ile); 1 ) along with cyclo‐(( S )‐Pro‐( R )‐Leu) ( 3 ) and seco‐(( S )‐Pro‐( R )‐Val) ( 2 ) were isolated. The structures were determined on the basis of NMR and MS analysis, and the absolute configuration was determined by comparison of the optical rotation with known compounds.
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