Читать книгу Routes to Essential Medicines - Peter J. Harrington - Страница 74

Hecogenin is a phytosteroid sapogenin isolated from the sisal plant, Agave sisalana. Draw the structures of the retrosynthetic analysis of an alternative route to betamethasone from hecogenin via 17α‐hydroxy‐16β‐methylpregn‐9(11)‐ene‐3,20‐dione.