Ein neues antifungisches β-lactam-antibioticum der clavam-reihe

Ein neues antifungisches β-lactam-antibioticum der clavam-reihe Clavamycins, new clavam antibiotics from two variants of Streptomyces hygroscopicus. I. Taxonomy of the producing organisms, fermentation, and biological activities. Clavamycins, new clavam antibiotics from two variants of Streptomyces hygroscopicus. I. Taxonomy of the producing organisms, fermentation, and biological activities. Clavamycins, new clavam antibiotics from two variants of Streptomyces hygroscopicus. II. Isolation and structures of clavamycins A, B and C from Streptomyces hygroscopicus NRRL 15846, and of clavamycins D, E and F from Streptomyces hygroscopicus NRRL 15879. Clavamycins, new clavam antibiotics from two variants of Streptomyces hygroscopicus. II. Isolation and structures of clavamycins A, B and C from Streptomyces hygroscopicus NRRL 15846, and of clavamycins D, E and F from Streptomyces hygroscopicus NRRL 15879. Clavulanic acid, a novel β-lactam isolated from Streptomyces clavuligerus; X-ray crystal structure analysis A comparison of the clavam biosynthetic gene clusters in <i>Streptomyces antibioticus</i> Tü1718 and <i>Streptomyces clavuligerus</i> A comparison of the clavam biosynthetic gene clusters in <i>Streptomyces antibioticus</i> Tü1718 and <i>Streptomyces clavuligerus</i> Chlorocardicin, a monocyclic .BETA.-lactam from a Streptomyces sp. II. Isolation, physico-chemical properties and structure determination. Clavulanic acid, a β-lactamase inhibitor: biosynthesis and molecular genetics