2α, 3β, 19-Triacetoxy-14α-hydroxy-5α-card-20:22-enolid: Teilsynthese. Zusätzlicher Beweis für die Struktur des Calotropagenins. Glykoside und Aglykone, 324. Mitteilung

Coroglaucigenin, which is known to be a 3β, 14β, 19-trihydroxy-5α-card-20: 22-enolid, was transformed into 2α, 3β, 19-triacetoxy-14β-hydroxy-5α-card-20 : 22-enolid. The latter was identical with the known tri-O-acetyl-19-dihydro-calotropagenin. The structure of calotropagenin ( 1 ) is thus established through an independent way.