Safracins, new antitumor antibiotics: I. Producing organism, fermentation and isolation

Abstract

Safracins, new antibiotics with a novel skeleton, were discovered in a culture broth of Pseudomonas sp. The producing organism has been identified as Pseudomonas fluorescens. Safracins A and B were isolated by ethyl acetate extraction and chromatography on silica gel. © 1983, JAPAN ANTIBIOTICS RESEARCH ASSOCIATION. All rights reserved.