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Mondol, M. A.Mojid,Tareq, Fakir Shahidullah,Kim, Ji Hye,Lee, Min ah,Lee, Hyi-Seung,Lee, Yeon-Ju,Lee, Jong Seok,Shin, Hee Jae American ChemicalSociety and AmericanSociety of Ph 2011 Journal of natural products Vol.74 No.12
<P>Bioassay-guided isolation of bioactive metabolites fromthe ethylacetate extract of a marine <I>Bacillus</I> sp. fermentationbroth has led to the discovery of three new 24-membered macrolactones,macrolactins <B>1</B>–<B>3</B>, which contain anoxetane, an epoxide, and a tetrahydropyran ring, respectively. Theconfigurations of <B>1</B>–<B>3</B> were assignedby a combination of coupling constants, ROESY data analysis, and applicationof the modified Mosher’s method. Compounds <B>1</B>–<B>3</B> showed <I>in vitro</I> antimicrobial activity.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jnprdf/2011/jnprdf.2011.74.issue-12/np200487k/production/images/medium/np-2011-00487k_0006.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/np200487k'>ACS Electronic Supporting Info</A></P>
Ieodomycins A–D, Antimicrobial Fatty Acidsfrom a Marine <i>Bacillus</i> sp.
Mondol, M. A.Mojid,Kim, Ji Hye,Lee, Min ah,Tareq, Fakir Shahidullah,Lee, Hyi-Seung,Lee, Yeon-Ju,Shin, Hee Jae American Chemical Society and AmericanSociety of P 2011 Journal of natural products Vol.74 No.7
<P>Bioassay-guided isolation of the EtOAc extract of a marine Bacillus sp., cultured in modified Bennett's broth medium, yielded four new antimicrobial fatty acids, named ieodomycins A-D (1-4). The planar structures of these new compounds were determined by extensive 1D and 2D NMR and HRESIMS spectroscopic data analysis. Their absolute configurations were elucidated by modified Mosher's method and literature data review. All four new compounds (1-4) demonstrated antimicrobial activities in vitro.</P>