Betamethasone-21-acetate-17-propionate is a corticosteroid derivative featuring esterification of the 21-hydroxyl group with acetic acid and the 17ฮฑ-hydroxyl group with propionic acid. This dual esterification modifies the parent drug's solubility and metabolic profile by introducing branched aliphatic ester moieties, enhancing lipophilicity while retaining the core 4-pregnene-3,20-dione scaffold. The compound arises as a synthetic intermediate in the esterification pathway of betamethasone, utilized as an HPLC reference standard for quantifying esterification efficiency in API production.
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InChI=1S/C27H35FO7/c1-6-23(33)35-27(22(32)14-34-16(3)29)15(2)11-20-19-8-7-17-12-18(30)9-10-24(17,4)26(19,28)21(31)13-25(20,27)5/h9-10,12,15,19-21,31H,6-8,11,13-14H2,1-5H3/t15-,19-,20-,21-,24-,25-,26-,27-/m0/s1
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