A new antitumor antibiotic, FR900840. II. Structural elucidation of FR900840.

A new antitumor antibiotic, FR900840. II. Structural elucidation of FR900840. FR-900137, a new antibiotic. II. Structure determination of FR-900137. A novel antifungal antibiotic, FR-900848. I. Production, isolation, physico-chemical and biological properties. FR-900137, a new antibiotic. I. Taxonomy and fermentation of the organism, and isolation and characterization of the antibiotic. FR-900137, a new antibiotic. I. Taxonomy and fermentation of the organism, and isolation and characterization of the antibiotic. A new antitumor antibiotic, FR-66979. FR-900148, a new antibiotic. I. Taxonomy, fermentation, isolation and characterization. A new antitumor antibiotic, FR-900482. I. Taxonomic studies on the producing strain: A new species of the genus Streptomyces. Studies on new phosphonic acid antibiotics. IV. Structure determination of FR-33289, FR-31564 and FR-32863. FR-900130, a novel amino acid antibiotic. II. Isolation and structure elucidation of the acetyl derivative of FR-900130.