title: Electrophilic opening of the thiazolidine ring in penicillins.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D007259:Infrared Rays; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010406:Penicillins; D013057:Spectrum Analysis; D013844:Thiazoles
chemical_list: D010406:Penicillins; D013844:Thiazoles