Resormycin, a novel herbicidal and antifungal antibiotic produced by a strain of Streptomyces platensis. II. Structure elucidation of resormycin.

A novel herbicidal antibiotic, resormycin, was isolated from the culture broth of Streptomyces platensis MJ953-SF5. The structure of resormycin is determined to be (2Z)-2-N-[2N-[(3S)-3,6-diaminoheptanoyl]-(2S)-3-hydroxyva lyl]amino-3- (4-chloro-3,5-dihydroxy)phenylpropenoic acid by spectroscopic analyses, degradation studies and X-ray crystallography.