Two new members of the spirotetronate class, nai414-A and nai414-B, were discovered and isolated from an Actinoallomurus sp. Their structures were established by 1D and 2D NMR, UV, and MS analyses and by chemical degradation. They showed antimicrobial and antitumor activity against Gram-positive bacteria and against human microvascular endothelial cells, respectively. Substituting bromide for chloride ions in the growth medium afforded mono- and dibrominated derivatives.
Halogenated spirotetronates from Actinoallomurus / C. Mazzetti, M. Ornaghi, E. Gaspari, S. Parapini, S. Maffioli, M. Sosio, S. Donadio. - In: JOURNAL OF NATURAL PRODUCTS. - ISSN 0163-3864. - 75:6(2012 May), pp. 1044-1050. [10.1021/np300003n]
Halogenated spirotetronates from Actinoallomurus
S. Parapini;
2012
Abstract
Two new members of the spirotetronate class, nai414-A and nai414-B, were discovered and isolated from an Actinoallomurus sp. Their structures were established by 1D and 2D NMR, UV, and MS analyses and by chemical degradation. They showed antimicrobial and antitumor activity against Gram-positive bacteria and against human microvascular endothelial cells, respectively. Substituting bromide for chloride ions in the growth medium afforded mono- and dibrominated derivatives.
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