New cardenolides from the leaves ofGomphocarpus fruticosus

Autor: V. T. Chernobai, A. N. Komissarenko, N. F. Komissarenko
Rok vydání: 1995
Předmět:
Zdroj: Chemistry of Natural Compounds. 31:694-700
ISSN: 1573-8388
0009-3130
DOI: 10.1007/bf01386182
Popis: Two new glycosides, gomphotin (1) and gomphotoxin (13), and also the known gomphoside (9) have been isolated from the leaves ofGomophocarpus fruticosus. Compounds (1) and (9) contain a 4,6-dideoxyhexosulose residue as the sugar component, and (13) a 6-deoxyhexosulose, which are attached to glycolic OH groups of the aglycons by 3β-O-1′α,2α-O-2′α (9, 13) and 3β-O-1′α,4β-O-2′β (1) acetal-ketal bonds. The structures of the new compounds are represented by the names (3β-O-1′α,4β-O-2′β)-(2′α,3′α-dihydroxy-4′, 6′dideoxyhexulosido)-14β-hydroxy-5α-card-20(22)-enolide* (1) and (3β-O-1′α,2α-O-2′α)-(2′β,3′α,4′β-trihydroxy-6′-deoxyhexulosido)-14β-hydroxy-5α-card-20(22)-enolide* (13).
Databáze: OpenAIRE
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