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From the roots of UNCARIA TOMENTOSA six oxindol alkaloids have been isolated and identified as isopteropodin, pteropodin, mitraphyllin, isomitraphyllin, rynchophyllin and isorynchophyllin. By ion pair chromatography on HPLC a fingerprint analysis has been worked out which allowed to differentiate between various UNICARIA-species and drug preparations. With the exception of mitraphyllin and rynchophyllin all alkaloids showed a pronounced enhancement effect on phagozytosis, determined in two IN VITRO tests and the IN VIVO-carbon clearance test.

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From the leaves and flowers of Crataegus monogyna and C. Pentagyna six new flavonoid-C- and O-glycosides respectively have been isolated and identified as 2''-O-rhamnosyl-orientin, 2''-O-rhamnosyl-isoorientin, 2''-O-rhamnosyl-isovitexin, rutin, spiraeosid, 8-methoxy-kämpferol and 8-methoxy-kämpferol-3-O-glucoside. The structure of O-rhamnosyl-vitexin and O-acetyl-O-rhamnosyl-vitexin isolated previously, have been elucidated unambigiously mainly by NMR- and MS-spectroscopy.

For a flavone-di-glycoside from a garden variety of Viola tricolor L. the structure 5,7,4′-Trihydroxyflavone-6-C-β-ᴅ-glucopyranosyl-8-C-α-ʟ-rhamnopyranoside was elucidated using mainly perjodate oxidation, NMR- and mass-spectroscopy.From the same plant besides the mono-C-glucosides Vitexin, Saponaretin, Orientin and Isoorientin four Apigenin-di-C-glycosides were isolated, one of them proved to be identical with Vicenine-2.

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Key Word Index: Lycopodiaceae; Lycopodium clavatum L.; Acylated Apigenin-4'0-glucoside. AbstractThe structure of a new acylated flavonoid glycoside has been elucidated. as apigenin-4'-0-(2",6"-di-0-p-coumaroyl-B-D-glucopyranoside) on the basis of chemical degradation and spectral data. The plant Lycopodium clavatum L.is of medicinal importance being used for dermatic diseases, as a diuretic, demulcent, antispasmodic, as an emmenagogue, in .rheumatism and in diseases of the lung and kidneys [2, 31. We report here on the isolation and structure elucidation bf a new acylated apigenin-4'-0-,B-D-glucoside, LC 1 (I).