Biosynthetic origins of the oxygen atoms in the ansamycin antibiotics rifamycin B, O, and S

Biosynthetic origins of the oxygen atoms in the ansamycin antibiotics rifamycin B, O, and S
复制标题

安沙霉素抗生素利福霉素 B、O 和 S 中氧原子的生物合成起源

DOI:
10.1039/c39890000311
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发表时间:
1989
期刊:
Journal of The Chemical Society, Chemical Communications
影响因子:
--
通讯作者:
J. Rothschild
J. Rothschild
中科院分区:
--
文献类型:
--
作者:
Margaret G. Anderson;Dominic F Monypenny;R. Rickards;J. Rothschild

文献摘要

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诺卡氏菌的培养利用大气中的氧气形成阿霉素抗生素利福霉素B、O和S的C-1氧官能团和C-29乙烯基醚基团,而C-8酚羟基和C-8碳原子都来自3-氨基-5-羟基苯甲酸的羧基,这些结果排除了8-脱氧阿霉素作为可能的生物合成中间体。
Cultures of Nocardia mediterrance utilise atmospheric oxygen to form the C-1 oxygen function and C-29 vinyl ether group of the ansamycin antibiotics rifamycin B, O, and S, while the C-8 phenolic hydroxy group and C-8 carbon atom are both derived from the carboxy group of 3-amino-5-hydroxybenzoic acid; these results exclude 8-deoxyansamycins as possible biosynthetic intermediates.