Water-soluble derivatives of novel cephalosporins and methods for their preparation

摘要

The present invention relates to a novel water-soluble derivative of an insoluble cationic antibiotic represented by the following structural formula (I) and a process for producing the same.;In this formula,;R_OneIs a lower saturated alcohol having 1 to 3 carbon atoms, R₂Phenyl or 4-hydroxyphenyl group, R₃Is a lower alkyl group having 1 to 3 carbon atoms or a halogen atom, and X is l-arginine or l-lysine.