Deactivation of antibiotic-hydrolyzing enzymes
Derivatives of 6.beta.-hydroxyalkylpenicillanic acids as .beta.-
Derivatives of clavulanic acid their preparation and their use
Derivatives of clavulanic acid, a process for their preparation
Derivatives of clavulanic acid, a process for their preparation
Derivatives of clavulanic acid, a process for their preparation
Derivatives of clavulanic acid, their preparation and their use