title: Transformations of penicillin. II. NN'-di-isopropylhydrazine, a new reagent for protection of carboxylic acids.
mesh_terms: D000215:Acylation; D002264:Carboxylic Acids; D055598:Chemical Phenomena; D002621:Chemistry; D005227:Fatty Acids; D006834:Hydrazines; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D010084:Oxidation-Reduction; D010406:Penicillins
chemical_list: D002264:Carboxylic Acids; D005227:Fatty Acids; D006834:Hydrazines; D007202:Indicators and Reagents; D010406:Penicillins