Totopotensamides, Polyketide–Cyclic Peptide Hybrids from a Mollusk-Associated Bacterium <i>Streptomyces</i> sp.
作者:Zhenjian Lin、Malem Flores、Imelda Forteza、Niel M. Henriksen、Gisela P. Concepcion、Gary Rosenberg、Margo G. Haygood、Baldomero M. Olivera、Alan R. Light、Thomas E. Cheatham、Eric W. Schmidt
DOI:10.1021/np200886x
日期:2012.4.27
Two new compounds, the peptide polyketide glycoside totopotensamide A (1) and its aglycone totopotensamide B (2), were isolated from a Streptomyces sp. cultivated from the gastropod mollusk Lienardia totopotens collected in the Philippines. The compounds contain a previously undescribed polyketide component, a novel 2,3-diaminobutyric acid-containing macrolactam, and a new amino acid, 4-chloro-5,7-dihydroxy-6-methylphenylglycine. The application of Marfey's method to phenylglycine derivatives was explored using quantum mechanical calculations and NMR.