Isolation and structure elucidation of two novel deformylase inhibitors produced by Streptomyces sp.

Sch 382582 (1) and Sch 382583 (2), two novel pseudopeptides, were isolated from fermentation broth of Streptomyces sp. as bacteria peptide deformylase inhibitors. Structure elucidation of 1 and 2 was accomplished by extensive 2D NMR spectroscopic studies including NOESY, HMQC-TOCSY and HMBC experiments, and the relative stereochemistry was determined by X-ray crystallography. Both compounds displayed potent inhibitory activity against E. coli deformylase.