Studies on the Constituents of Asclepiadaceae Plants. LXVI. The Structures of Three New Glycosides, Cynapanosides A, B, and C, from the Chinese Drug "Xu-Chang-Qing, " Cynanchum paniculatum KITAGAWA

Studies on the Constituents of Asclepiadaceae Plants. LXVI. The Structures of Three New Glycosides, Cynapanosides A, B, and C, from the Chinese Drug "Xu-Chang-Qing, " Cynanchum paniculatum KITAGAWA

Three new glycosides named cynapanosides A (1), B (2), and C (3) which contain a new aglycone, glaucogenin D (10), were isolated from Cynanchum paniculatum, in addition to the known compounds, cynatratoside B (5) and 3β, 14-dihydroxy-14β-pregn-5-en-20-one (13). Their structures were elucidated by sp...

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Veröffentlicht in:Chemical & pharmaceutical bulletin 1986/11/25, Vol.34(11), pp.4500-4507
Hauptverfasser: SUGAMA, KO, HAYASHI, KOJI, MITSUHASHI, HIROSHI, KANEKO, KO
Format: Artikel
Sprache:eng
Schlagworte:
Asclepiadaceae
Biological and medical sciences
Chemical Phenomena
Chemistry
General pharmacology
Glycosides - analysis
Medical sciences
Medicine, Chinese Traditional
Medicine, East Asian Traditional
Pharmacognosy. Homeopathy. Health food
Pharmacology. Drug treatments
Plants, Medicinal - analysis
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Zusammenfassung:Three new glycosides named cynapanosides A (1), B (2), and C (3) which contain a new aglycone, glaucogenin D (10), were isolated from Cynanchum paniculatum, in addition to the known compounds, cynatratoside B (5) and 3β, 14-dihydroxy-14β-pregn-5-en-20-one (13). Their structures were elucidated by spectroscopic and chemical methods. The results led us to propose a structure revision of glaucogenin B (11).
ISSN:0009-2363
1347-5223
DOI:10.1248/cpb.34.4500