title: Syntheses of 24,25-dihydroxyvitamin D2, 24,25-dihydroxy-22-dehydrovitamin D3, 25-hydroxy-24-oxo-22-dehydrovitamin D3 and 22,24,25-trihydroxyvitamin D3.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D004100:Dihydroxycholecalciferols / Q000138:chemical synthesis*; D004872:Ergocalciferols / Q000031:analogs & derivatives* / Q000138:chemical synthesis; D013056:Spectrophotometry, Ultraviolet
chemical_list: D004100:Dihydroxycholecalciferols; D004872:Ergocalciferols; C028140:24,25-dihydroxyvitamin D2