title: Synthesis of macrolide antibiotics. I. Stereospecific addition of methyllithium and methylmagnesium iodide to methyl alpha-D-xylo-hexopyranosid-4-ulose derivatives. Determination of the configuration at the branching carbon atom by carbon-13 nuclear magnetic resonance spectroscopy.
mesh_terms: D000900:Anti-Bacterial Agents / Q000138:chemical synthesis*; D002247:Carbon Isotopes; D007454:Iodides; D008094:Lithium; D008274:Magnesium; D009682:Magnetic Resonance Spectroscopy; D008759:Methylglycosides; D009942:Organometallic Compounds; D011714:Pyrans / Q000138:chemical synthesis*; D013237:Stereoisomerism
chemical_list: D000900:Anti-Bacterial Agents; D002247:Carbon Isotopes; D007454:Iodides; D008759:Methylglycosides; D009942:Organometallic Compounds; D011714:Pyrans; D008094:Lithium; D008274:Magnesium