title: Determination of the configuration of the four D-benzylpenicilloates.
mesh_terms: D004952:Esters; D008722:Methods; D010400:Penicillin G / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D013237:Stereoisomerism
chemical_list: D004952:Esters; D010400:Penicillin G