Alkaloids from Delphinium pentagynum

Aerial parts of a collection of Delphinium pentagynum Lam. from Niebla, Southern Spain, furnished one diterpene alkaloid, 2-dehydrodeacetylheterophylloidine, two norditerpene alkaloids, 14-demethyl-14-isobutyrylanhweidelphinine and 14-demethyl-14-acetylanhweidelphinine, the known alkaloids 14-deacetylnudicauline, methyllycaconitine, 14-deacetyl-14-isobutyrylnudicauline, 14-acetylbrowniine, browniine, delcosine, lycoctonine, 18-methoxygadesine, neoline, karakoline and the aporphine alkaloid magnoflorine. Structures of the alkaloids were established by MS, 1D and 2-D NMR techniques.     

Norditerpenoid alkaloids from Delphinium species

From the aerial parts of four Delphinium species 11 known and 3 new norditerpenoid alkaloids have been isolated: from D. dissectum Huth: delavaine A/B, deoxylycoctonine, methyllycaconitine; new: 10-hydroxymethyllycaconitine; from D. excelsum Reichenb.: delcaroline, delectinine, delterine, methyllycaconitine; new: 10-hydroxymethyllycaconitine, 18-O-methyldelterine and 10-hydroxynudicaulidine; from D. grandiflorum L.: delcosine, deltatsine, grandiflorine, methyllycaconitine; from D. triste Fisch.: delcosine, macrocentridine, 14-dehydrodelcosine. The structures of the new alkaloids were established on the basis of MS, 1H, 13C, DEPT, homonuclear COSY, HMQC and HMBC NMR spectroscopic techniques.     

泽泻染色体的核型分析

对泽泻体细胞染色体计数,并对其核型进行分析,结果表明：泽泻的染色体数目为2n=14;核型公式为2n=2x=14=10m 4T,染色体相对长度组成为2n=14=2L 6M2 2M1 4S,属于2B型。全组染色体总长40．15μm,长臂总长为25．14μm,核型不对称系数为62.62％。染色体总体积为104．26μm^3。     

Schizokotylie und Pleiokotylie bei Delphinium ajacis

Ohne ZusammenfassungMit 10 Textabbildungen.     

Acylated flavonol glycosides from Delphinium staphisagria

An ethanolic extract of the aerial parts of Delphinium staphisagria L. from Tenerife yielded four new flavonol glycosides 2″-acetylastragalin, 2″-acetylpaeonoside, quercetin 3-O-(2-acetyl-β-glucopyranoside)-7-O-β-glucopyranoside and 2″-acetylpetiolaroside in addition to astragalin, isoquercitrin, paeonoside, kaempferol 3-O-β-glucopyranoside-7-O-α-rhamnopyranoside, petiolaroside and rutin.     

新疆翠雀花属二新种

描述了自新疆维吾尔族自治区发现的毛茛科翠雀花属二新种,腺梗翠雀花和巩留翠雀花,并分别给出了此二种与其近缘种的区别特征。     

An isomer of xanthanol from Xanthium orientale

The aerial parts of Xanthium orientale afforded an isomer of xanthanol.     

Studies on the Lignans of Polygonum orientale

Three lignans were isolated from the aerial parts of Polygonum orientale L. Their structures were elucidated as arctiin (1), lappaol B (2), orientalin (3) by means of the spectral data and chemical methods. Among them, 3 is a novel compound, compounds 1 and 2 were first found in this plant.     

Six new norditerpenoid alkaloids from Delphinium elatum

Six new C₁₉-norditerpenoid alkaloids, N-formyl-4,19-secopacinine (1), iminoisodelpheline (2), iminodelpheline (3), iminopaciline (4), 6-dehydroeladine (5), and elapacidine (6) were isolated from Delphinium elatum cv. Pacific Giant.     

Taxonomic and nomenclatural notes on Delphinium L

BLANCHE, C. & MOLERO, J., 1993. Taxonomic and nomenclatural notes on Delphinium L. Delphinium viciosoi Pau and Delphinium intrincatum Pau, two poorly known plants from Iran, are typified. A new combination for the latter, Aconitella intrincata (Pau) Blanche & Molero is given. The name Delphinium ambiguum L. should not be attached to the plant known as Delphinium nanum DC, but should be considered as a synonym for Consolida ajacis (L.) Schur (= Delphinium ajacis L.).     

Four new diterpenoid alkaloids from Delphinium elatum

Diterpenoid alkaloids exhibit remarkable chemical properties and biological activities. Such compounds are frequently found in plants of the genera Aconitum, Delphinium, and Garrya. Several diterpenoid alkaloid components from Delphinium elatum cv. Pacific Giant and their derivatives exhibited cytotoxic activity against lung, prostate, nasopharyngeal, and vincristine-resistant nasopharyngeal cancer cell lines. Phytochemical investigations on the seeds of D. elatum cv. Pacific Giant led to the isolation of four new C₁₉-diterpenoid alkaloids, melpheline (1), 19-oxoisodelpheline (2), N-deethyl-19-oxoisodelpheline (3), and N-deethyl-19-oxodelpheline (4). The isolated alkaloids were elucidated by extensive spectroscopic methods including NMR (1D and 2D), IR, and MS (HRMS).     

Primo contributo alla conoscenza dei Micromiceti dell'Africa orientale

Summary The author presents the list of the fungus species gathered in Scioa country, in Amara and chiefly in the countries of Galles and Sidamo (East-Africa).

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Il presente lavoro, già pronto nella seconda metà del 1940, non potè essere portato a conoscenza degli studiosi per le condizioni di isolamento nelle quali venne a trovarsi l'Africa Orientale dopo l'inizio delle ostilità con i territori limitrofi.Esso viene ora reso noto nella forma originaria, che, meno trascurabili varianti, e rimasta intatta.     

Norditerpene alkaloids from Delphinium linearilobum and antioxidant activity

From the roots of Delphinium linearilobum (Trautv.) N. Busch two new norditerpene alkaloids linearilobin and linearilin, and the known alkaloids lycoctonine, 14-acetyltalatizamine, browniine, cammaconine, talatizamine, and cochlearenine were isolated. Spectroscopic techniques were used for structure determination. Antioxidant activity was performed by DPPH and metal chelating activity assays.