2. Academic Validation
  3. Brocazines A-F, Cytotoxic Bisthiodiketopiperazine Derivatives from Penicillium brocae MA-231, an Endophytic Fungus Derived from the Marine Mangrove Plant Avicennia marina

Brocazines A-F, Cytotoxic Bisthiodiketopiperazine Derivatives from Penicillium brocae MA-231, an Endophytic Fungus Derived from the Marine Mangrove Plant Avicennia marina

  • J Nat Prod. 2014 Aug 22;77(8):1921-7. doi: 10.1021/np500382k.
Ling-Hong Meng 1 2,  Xiao-Ming Li 1,  Cui-Ting Lv 3,  Cai-Guo Huang 3,  Bin-Gui Wang 1
Affiliations

Affiliations

  • 1 Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences , Nanhai Road 7, Qingdao 266071, People's Republic of China.
  • 2 University of Chinese Academy of Sciences , Yuquan Road 19A, Beijing 100049, People's Republic of China.
  • 3 Department of Biochemistry and Molecular Biology, Second Military Medical University , Xiangyin Road 800, Shanghai 200433, People's Republic of China.
PMID: 25105722 DOI: 10.1021/np500382k
Abstract

Six new disulfide-bridged diketopiperazine derivatives, brocazines A-F (1-6), along with one known analogue (7), were isolated and identified from the cytotoxic extract of Penicillium brocae MA-231, a fungus obtained from the fresh tissue of the marine mangrove plant Avicennia marina. The structures of these compounds were established on the basis of detailed interpretation of NMR and mass spectroscopic data. X-ray crystallographic analysis confirmed the structure of 1 and established the structure and absolute configuration of 5, while the absolute configurations for compounds 1, 4, and 6 were deduced by comparison of the CD data with those of 5. Compounds 1, 2, 5, and 6 showed cytotoxic activities against several tumor cell lines.

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