Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (7): 2486-2500.DOI: 10.6023/cjoc202411022 Previous Articles     Next Articles

ARTICLES

源自海洋链霉菌OUCMDZ-5522的十字孢碱类天然产物

卜淑甜a, 王永a, 殷文剑a, 温青云a, 王佩c, 朱伟明a,b,*()   

  1. a 中国海洋大学医药学院 海洋药物教育部重点实验室 山东青岛 266003
    b 青岛海洋科技中心 海洋药物与生物制品功能实验室 山东青岛 266237
    c 广西民族大学化学化工学院 林产化学与工程国家民委重点实验室 南宁 530006
  • 收稿日期:2024-11-27 修回日期:2025-01-11 发布日期:2025-02-14
  • 基金资助:
    国家自然科学基金(82473838); 国家自然科学基金(30572246); 国家自然科学基金-山东联合基金(U1906213)

Staurosporine Natural Products Derived from Marine Streptomyces sp. OUCMDZ-5522

Shutian Bua, Yong Wanga, Wenjian Yina, Qingyun Wena, Pei Wangc, Weiming Zhua,b,*()   

  1. a Key Laboratory of Marine Drugs, Ministry of Education of Chin, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003
    b Laboratory for Marine Drugs and Bioproducts, Marine Science and Technology Center, Qingdao, Shandong 266237
    c Key Laboratory of Chemistry and Engineering of Forest Products (State Ethnic Affairs Commission), School of Chemistry and Chemical Engineering, Guangxi Minzu University, Nanning 530006
  • Received:2024-11-27 Revised:2025-01-11 Published:2025-02-14
  • Contact: *E-mail: weimingzhu@ouc.edu.cn
  • Supported by:
    National Natural Science Foundation of China(82473838); National Natural Science Foundation of China(30572246); National Natural Science Foundation of China-Shandong Fund Joint Project(U1906213)

The marine-derived Streptomyces OUCMDZ-5522 was fermented in a carbazole liquid medium. Guided by the distinctive UV absorption of the indolocarbazole core of staurosporine, 11 staurosporine alkaloids were isolated from the fermentation broth. Using nuclear magnetic resonance (NMR), specific rotation, and electronic circular dichroism (ECD) techniques, their structures were identified as 7-oxo-3'-N-carbamoyl staurosporine (1), 3'-N-mesylstaurosporine (2), 7-oxostauro- sporine (3), staurosporine (4), 3'-demethylamino-2'α,3'α-dihydroxy staurosporine (MLR-52, 5), K252d (6), K252a (7), 3'-methylamino-3'-deoxy K252a (8), holyrine A (9), 3'-N-acetylholyrine A (10) and 7-oxo-3'-N-acetylholyrine A (13G-31G, 11), respectively. Notably, compound 1 is a new compound, and compound 2 is a new naturally occurring discovery. Antibacterial activities were observed for compound 1 against Edwardsiella tarda, compound 6 against Vibrio vulnificus, compound 9 against Vibrio parahaemolyticus, and compound 10 against Vibrio vulnificus, Enterobacter aerogenes, Bacillus cereus and Bacillus thuringiensis, each with a minimum inhibitory concentration (MIC) of 32 μg•mL-1.

Key words: marine Streptomyces, staurosporine alkaloids, structure identification, antibacterial activity