SB-203207 and SB-203208, Two Novel Isoleucyl tRNA Synthetase Inhibitors from a Streptomyces sp. I. Fermentation, Isolation and Properties.

Two novel inhibitors of isoleucyl tRNA synthetase designated SB-203207 and SB-203208 have been detected in the culture of a new Streptomyces species. The fermentation, isolation and some properties of the inhibitors are described.