New penicillin esters and methods and compositions for treating infectious diseases

摘要: Penicillin esters of the formula ##EQU1## wherein R 1 is alkyl containing from one to eight carbon atoms, phenyl, thienyl, furyl, or phenyl substituted with more members group consisting halogen, hydroxy, and amino, 2 selected --SO 3 H, tetrazolyl, --NHSO 4 , ##EQU2## AND WHEREIN ##EQU3## The radicals -R 10 X are defined in specification. well resorbed at oral administration.