title: Chemical modification of erythromycins. I. 8,9-Anhydro-69-hemiketal of erythromycin A.
mesh_terms: D001965:Bromides; D055598:Chemical Phenomena; D002621:Chemistry; D002712:Chlorides; D004917:Erythromycin; D007659:Ketones; D009682:Magnetic Resonance Spectroscopy; D011725:Pyridines; D013055:Spectrophotometry, Infrared
chemical_list: D001965:Bromides; D002712:Chlorides; D007659:Ketones; D011725:Pyridines; D004917:Erythromycin