Planta Med 2017; 83(18): 1405-1411
DOI: 10.1055/s-0043-111897
Natural Product Chemistry and Analytical Studies
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

Bioactive Bafilomycins and a New N-Arylpyrazinone Derivative from Marine-derived Streptomyces sp. HZP-2216E

Zhizhen Zhang1, Lu Chen1, Xiufang Zhang1, Ying Liang1, Komal Anjum1, Lei Chen1, Xiao-Yuan Lian2
  • 1Ocean College, Zhejiang University, Zhoushan, China
  • 2College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
Further Information

Publication History

received 21 January 2017
revised 07 May 2017

accepted 17 May 2017

Publication Date:
01 June 2017 (eFirst)

Abstract

A MeOH extract prepared from culture of an actinomycete Streptomyces sp. HZP-2216E isolated from marine green algae Ulva pertusa was found to significantly inhibit proliferation of human glioma cells. Two different media were applied to culture this marine actinomycete, which produced two new compounds of 23-O-butyrylbafilomycin D and streptoarylpyrazinone A, together with known bafilomycin D, 9-hydroxybafilomycin D, and bafilomycin A1. Structures of new compounds were determined by extensive NMR spectroscopic analyses and HRESIMS data. Bioactive assay indicated that all isolated bafilomycins significantly inhibited the proliferation of different glioma cell lines and the growth of methicillin-resistant Staphylococcus aureus with 23-O-butyrylbafilomycin D as the most active compound. Streptoarylpyrazinone A is a new N-arylpyrazinone derivative existing as a zwitterion, and this type of compounds was rarely found from natural resources.

Supporting Information