RÉSUMÉ
Bioactivity-directed fractionation of the leaves of Annona muricata L. (Annonaceae) resulted in the isolation of two new Annonaceous acetogenins, muricoreacin (1) and murihexocin C (2). Compounds 1 and 2 showed significant cytotoxicities among six human tumor cell lines with selectivities to the prostate adenocarcinoma (PC-3) and pancreatic carcinoma (PACA-2) cell lines.
Sujet(s)
Antinéoplasiques d'origine végétale/isolement et purification , Antinéoplasiques d'origine végétale/pharmacologie , Furanes/isolement et purification , Furanes/pharmacologie , Lactones/isolement et purification , Lactones/pharmacologie , Extraits de plantes/isolement et purification , Extraits de plantes/pharmacologie , Plantes médicinales/composition chimique , 4-Butyrolactone/analogues et dérivés , 4-Butyrolactone/isolement et purification , 4-Butyrolactone/pharmacologie , Adénocarcinome/traitement médicamenteux , Chromatographie en phase liquide à haute performance , Alcools gras/isolement et purification , Alcools gras/pharmacologie , Humains , Spectroscopie par résonance magnétique/méthodes , Mâle , Tumeurs du pancréas/traitement médicamenteux , Feuilles de plante/composition chimique , Tumeurs de la prostate/traitement médicamenteux , Spectrométrie de masse FAB , Arbres/composition chimique , Cellules cancéreuses en cultureRÉSUMÉ
Four triterpenoid saponins were isolated from Berneuxia thibetica. On the basis of chemical and spectroscopic evidence, three new saponins, berneuxia saponins A, B and C, were elucidated as 21-tigloylbarringtogenol C-3 beta-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-galactopyranosyl(1-->3)[bet a- D-glucopyranosyl(1-->2)-beta-D-glucuronopyranoside], 28-tigloylbarringtogenol C-3 beta-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-galactopyranosyl(1-->3)[bet a- D-glucopyranosyl(1-->2)-beta-D-glucuronopyranoside] and 16 alpha-28-dihydroxyolean-12-en-21-one-3-O-alpha-L-rhamnopyranosyl(1 -->2) -beta-D-galactopyranosyl(1-->3)[beta-D-glucopyranosyl(1-->2)-beta-D- glucuronopyranoside]. The known saponin was desacyl jegosaponin.
Sujet(s)
Plantes médicinales , Saponines/composition chimique , Triterpènes/composition chimique , Conformation des glucides , Séquence glucidique , Chine , Médecine traditionnelle chinoise , Données de séquences moléculaires , Saponines/isolement et purification , Triterpènes/isolement et purificationRÉSUMÉ
Bioactivity-directed fractionation of the leaf extract of Annona muricata L. (Annonaceae) has resulted in the isolation of two new Annonaceous acetogenins, annomuricine (1) and muricapentocin (2). Compounds 1 and 2 are monotetrahydrofuran ring acetogenins bearing two flanking hydroxyl groups; however, each has three additional hydroxyl groups. Compound 1 has an erythro 1,2-diol, and 2 has a 1,5,9-triol moiety. Both 1 and 2 showed significant cytotoxicities against six types of human tumors, with selectivities to the pancreatic carcinoma (PACA-2) and colon adenocarcinoma (HT-29) cell lines.
Sujet(s)
Antinéoplasiques d'origine végétale/isolement et purification , Furanes/isolement et purification , Lactones/isolement et purification , Plantes médicinales/composition chimique , Antinéoplasiques d'origine végétale/pharmacologie , Tests de criblage d'agents antitumoraux , Furanes/pharmacologie , Lactones/pharmacologie , Spectroscopie par résonance magnétique , Spectrométrie de masse , Feuilles de plante/composition chimique , Spectrophotométrie IR , Spectrophotométrie UV , StéréoisomérieRÉSUMÉ
Two new triterpenoid saponins, named hupehensis saponin F and G, were isolated from the water soluble part of Anemone hupehensis Lemoine. By chemical and spectroscopic evidence, their structures were elucidated as 3-O-beta-D-ribopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1--> 2)-alpha-L-arabinopyranosyl hederagennin-28-O-alpha-rhamnopyranosyl(1--> 4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosyl(1--> 3)-alpha-L-rhamnopyranosyl(1-->4)-beta-glucopyranosyl(1--> 6)-beta-D-glucopyranoside and 3-O-beta-D-ribopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1--> 2)-alpha-L-arabinopyranosyl hederagenin-28-O-beta-glucopyranosyl(1-->3)-alpha-rhamnopyranosyl( 1--> 4)-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranosyl(1--> 3)-alpha-L-rhamnopyranosyl(1-->4)-beta-D-glucopyranosyl(1--> 6)-beta-D-glucopyranoside, respectively.
Sujet(s)
Plantes médicinales , Saponines/composition chimique , Triterpènes/composition chimique , Conformation des glucides , Séquence glucidique , Chine , Médecine traditionnelle , Données de séquences moléculaires , Feuilles de plante , Racines de plante , Saponines/isolement et purification , Triterpènes/isolement et purificationRÉSUMÉ
Bioactivity-directed fractionation of the leaves of Annona muricata resulted in the isolation of annopentocins A (1), B (2), and C(3), and cis- and trans-annomuricin-D-ones (4, 5). Compounds 1-3 are the first acetogenins reported bearing a mono-tetrahydrofuran (THF) ring with one flanking hydroxyl, on the hydrocarbon side, and another hydroxyl, on the lactone side, that is one carbon away from the THF ring. Compounds 4 and 5 were obtained in a mixture and are new mono-THF ring acetogenins bearing two flanking hydroxyls and an erythro-diol located between the THF and the ketolactone rings. Compound 1 was selectively cytotoxic to pancreatic carcinoma cells (PACA-2), and 2 and 3 were selectively cytotoxic to lung carcinoma cells (A-549); the mixture of 4 and 5 was selectively cytotoxic for the lung (A-549), colon (HT-29), and pancreatic (PACA-2) cell lines with potencies equal to or exceeding those of Adriamycin.
Sujet(s)
4-Butyrolactone/analogues et dérivés , Antinéoplasiques d'origine végétale/isolement et purification , Furanes/isolement et purification , Feuilles de plante/composition chimique , 4-Butyrolactone/isolement et purification , 4-Butyrolactone/pharmacologie , Animaux , Antinéoplasiques d'origine végétale/pharmacologie , Artemia , Tests de criblage d'agents antitumoraux , Furanes/pharmacologie , Humains , Spectroscopie par résonance magnétique , Spectrométrie de masse , Masse moléculaire , Spectrophotométrie IR , Spectrophotométrie UV , Spectroscopie infrarouge à transformée de Fourier , Cellules cancéreuses en cultureRÉSUMÉ
In a continuation of our research on bioactive components from the leaves of Annona muricata, three novel monotetrahydrofuran Annonaceous acetogenins, namely, annomutacin [1], (2,4-trans)-10R-annonacin-A-one [2], and (2,4-cis)-10R- annonacin-A-one [3], have been identified. Their structures were deduced by ms, nmr, ir, and uv spectral and chemical methods, and the absolute configurations were determined by Mosher ester methodology. A known bioactive amide, N-p-coumaroyl tyramine, was also found. Compound 1 and the mixture of compounds 2 and 3 showed selective cytotoxicities against the human A-549 lung tumor cell line.
Sujet(s)
4-Butyrolactone/analogues et dérivés , Antinéoplasiques d'origine végétale/isolement et purification , Plantes médicinales/composition chimique , 4-Butyrolactone/composition chimique , 4-Butyrolactone/isolement et purification , 4-Butyrolactone/pharmacologie , Antinéoplasiques d'origine végétale/composition chimique , Antinéoplasiques d'origine végétale/pharmacologie , Humains , Spectroscopie par résonance magnétique , Structure moléculaire , Stéréoisomérie , Cellules cancéreuses en cultureRÉSUMÉ
The leaves of Annona muricata have yielded eight monotetrahydrofuran Annonaceous acetogenins. Two of them, annomuricins A [1] and B [2], whose chemical structures were deduced by ms, nmr, ir, and uv spectral and chemical methods, are novel and unusual. Compounds 1 and 2 each possess five hydroxyl groups; two hydroxyl groups are vicinal, with the vicinal group of 1 threo and that of 2 erythro. The absolute configurations of 1 and 2 were determined by Mosher ester methodology. Six monotetrahydrofuran acetogenins, previously described in the seeds, were found in the leaves; these are gigantetrocin A, annonacin-10-one, muricatetrocins A and B, annonacin, and goniothalamicin.
Sujet(s)
4-Butyrolactone/analogues et dérivés , Antinéoplasiques d'origine végétale/isolement et purification , Furanes/isolement et purification , Plantes médicinales/composition chimique , 4-Butyrolactone/analyse , 4-Butyrolactone/isolement et purification , Antinéoplasiques d'origine végétale/analyse , Tests de criblage d'agents antitumoraux , Furanes/analyse , Humains , Indonésie , Spectroscopie par résonance magnétique , Spectrométrie de masse , Conformation moléculaire , Spectrophotométrie IR , Spectrophotométrie UV , Cellules cancéreuses en cultureRÉSUMÉ
The leaves of Annona muricata have yielded the novel monotetrahydrofuran Annonaceous acetogenins, muricatocins A [1] and B [2]. Each compound possesses five hydroxyl groups, with two hydroxyl groups at the C-10 and C-12 positions. The absolute configurations of 1 and 2 (except for positions C-10 and C-12) were determined by Mosher ester methodology. The C-10, C-12 acetonides (1c, 2c) suggested relative stereochemistry and significantly enhanced cytotoxicity against the A-549 human lung tumor cell line. Three known monotetrahydrofuran acetogenins, annonacin A, (2,4-trans)-isoannonacin, and (2,4-cis)-isoannonacin, were also found.
Sujet(s)
4-Butyrolactone/analogues et dérivés , Antinéoplasiques d'origine végétale/isolement et purification , Furanes/isolement et purification , Feuilles de plante/composition chimique , Plantes médicinales/composition chimique , 4-Butyrolactone/composition chimique , 4-Butyrolactone/isolement et purification , 4-Butyrolactone/pharmacologie , Antinéoplasiques d'origine végétale/composition chimique , Antinéoplasiques d'origine végétale/pharmacologie , Tests de criblage d'agents antitumoraux , Furanes/composition chimique , Furanes/pharmacologie , Humains , Spectroscopie par résonance magnétique , Spectrométrie de masse , Conformation moléculaire , Cellules cancéreuses en cultureRÉSUMÉ
The leaves of Annona muricata have yielded two additional monotetrahydrofuran Annonaceous acetogenins, annomuricin C [1] and muricatocin C [2]. Compounds 1 and 2 each possess five hydroxyl groups; two hydroxyl groups are at the C-10/C-11 and C-10/C-12 positions in 1 and 2, respectively. The absolute configurations of 1 and 2, except for positions C-10 and C-11 or C-12, were determined by Mosher ester methodology. The C-10/C-11 and C-10/C-12 acetonides (1c, 2c) suggested relative stereochemistry and significantly enhanced the cytotoxicities against the A-549 human lung and the MCF-7 human beast solid tumor cell lines. One known monotetrahydrofuran acetogenin, gigantetronenin, not described previously from this plant, was also found.
Sujet(s)
4-Butyrolactone/analogues et dérivés , Antinéoplasiques d'origine végétale/isolement et purification , Furanes/isolement et purification , Plantes médicinales/composition chimique , 4-Butyrolactone/analyse , 4-Butyrolactone/isolement et purification , 4-Butyrolactone/pharmacologie , Antinéoplasiques d'origine végétale/analyse , Antinéoplasiques d'origine végétale/pharmacologie , Tests de criblage d'agents antitumoraux , Furanes/analyse , Furanes/pharmacologie , Humains , Indonésie , Spectroscopie par résonance magnétique , Spectrométrie de masse , Conformation moléculaire , Spectrophotométrie IR , Spectrophotométrie UV , Cellules cancéreuses en cultureRÉSUMÉ
Four triterpenoid saponins were isolated from Anemone hupehensis. On the basis of chemical and spectroscopic evidence, two new saponins, hupehensis saponins D and E, were elucidated as 3-O-beta-D-glucopyranosyl (1-->3)-beta-D-ribopyranosyl (1-->3)-alpha-L-rhamnopyranosyl (1-->2)-alpha-L-arabinopyranosyl oleanolic acid-28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside and 3-O-beta-D-glucopyransoyl (1-->3-beta-D-ribopyranosyl (1-->3)-alpha-L-rhamnopyranosyl (1-->2)-alpha-L-arabinopyranosyl hederagenin-28-O-alpha-L-rhamnopyranosyl (1-->4)-beta-D-glucopyranosyl (1-->6)-beta-D-glucopyranoside. The two known saponins were identified as huzhangosides B and D.
Sujet(s)
Médicaments issus de plantes chinoises/composition chimique , Acide oléanolique/analogues et dérivés , Saponines/isolement et purification , Triterpènes/isolement et purification , Séquence glucidique , Spectroscopie par résonance magnétique , Données de séquences moléculaires , Saponines/composition chimiqueRÉSUMÉ
92 cases with complete clinical data among 125 hyperlipemia patients were randomly divided into two groups: 51 cases in the Xue Zhi Ling treatment group and 41 cases in the control group with medication of panagin. The drugs were administered to all patients for 12 weeks and the blood lipid was then examined at the 4th, 8th, 12th week after medication respectively. In treatment group, there was the effect of lowering TC, TC-HDL/HDL and raising HDL at the 4th week (P < 0.05). However, there were no significant difference in above-mentioned parameters at the 4th, 8th and 12th week respectively. The experiment also showed that Xue Zhi Ling could reduce TG at the 8th and 12th week (P < 0.05). While there was no significant difference between that of the 8th and 12th weeks. The mean reduction of TC, TG and TC-HLD/HDL were 18.7%, 19.5% and 27.6% respectively, while the elevation of HDL in average was 17.4%. All of the lipid indexes in control group had no significant changes at any stage. In addition, it was shown that Xue Zhi Ling could decrease serum LPO at 12th week (P < 0.05). The results indicated that the Xue Zhi Ling has the effect of regulating the hyperlipemia and anti-oxidation.
Sujet(s)
Médicaments issus de plantes chinoises/usage thérapeutique , Hyperlipidémies/traitement médicamenteux , Hypolipémiants/usage thérapeutique , Sujet âgé , Cholestérol/sang , Cholestérol HDL/sang , Humains , Hyperlipidémies/sang , Peroxydes lipidiques/sang , Lipoprotéines LDL/sang , Mâle , Adulte d'âge moyen , Superoxide dismutase/sangRÉSUMÉ
Two new triterpenoid saponins, named bretschnosides A and B, were isolated from the roots of Pterocephalus bretschneidri. On the basis of chemical degradation and spectroscopic evidence, the structures of bretschnosides A and B were shown to be 3-O-alpha-L-rhamnopyranosyl(1-->3)- beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D- xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 4 and 3-O-alpha-D-glucopyranosyl(1-->3)-beta-D-xylopyranosyl(1-->3)-alpha-L- rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside 6, respectively.
Sujet(s)
Acide oléanolique/analogues et dérivés , Plantes médicinales/composition chimique , Saponines/isolement et purification , Triterpènes/isolement et purification , Séquence glucidique , Spectroscopie par résonance magnétique , Données de séquences moléculaires , Structure moléculaire , Saponines/composition chimique , Triterpènes/composition chimiqueRÉSUMÉ
Four new triterpenoid saponins, named hookerosides A-D, were isolated from Pterocephalus hookeri. Based on chemical and spectral evidence, their structures were determined as 3-O-beta-D-glucopyranosyl(1-->4)-beta-D-xylopyranosyl(1-->3)-alpha-L- Rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside, 3-O-beta-D-xylopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->4)-beta-D- xylopyranosyl(1-->3)-alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-D-glucopyranoside, 3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranosyl(1-->4)-beta-D- glucopyranosyl(1-->4)-beta-D-xylopyranosyl(1-->3)-alpha-L-rhamnopyranosy l(1-->2 ) beta-D-xylopyranosyl oleanolic acid 28-O-beta-D-glucopyranosyl(1-->6)-beta-glucopyranoside and oleanolic acid 3-O-alpha-L-rhamnopyranosyl(1-->2)-beta-D- xylopyranosyl(1-->4)-beta-D-glucopyranosyl(1-->4)-beta-D-xylopyranosyl(1 -->3)- alpha-L-rhamnopyranosyl(1-->2)-beta-D-xylopyranoside, respectively.
Sujet(s)
Plantes/composition chimique , Saponines/isolement et purification , Triterpènes/isolement et purification , Séquence glucidique , Spectroscopie par résonance magnétique , Données de séquences moléculaires , Structure moléculaire , Saponines/composition chimique , Triterpènes/composition chimiqueRÉSUMÉ
Four triterpenes were isolated from the alcoholic extract of Bemeuxia thibetica Decne. A new triterpene, 16 alpha, 21 beta, 22 alpha, 28-tetrahydroxyolean-12-en-3-one, named bemeuxin (I), was identified on the basis of spectral evidences. The other three triterpenes were identified as 21-tigloylbarringtogenol C(II), 2 alpha, 3 alpha-dihydroxyursolic acid (III) and 2 alpha, 3 beta-dihydroxyursolic acid (IV).
Sujet(s)
Médicaments issus de plantes chinoises/composition chimique , Triterpènes/isolement et purification , Structure moléculaire , Triterpènes/composition chimiqueRÉSUMÉ
Aconitum gymnandrum maxim. (ranunculaceae) is used as an herbal medicine in Tibet area. A new diterpenoid alkaloid, gymnandine (I) along with known alkaloids 14-acetyl-8-O-methyltalatisamine (II), acoforine (III), columbidine (IV), aconitine (V), ranaconitine (VI), talatizidine (VII), isotalatizidine (VIII), gymnanconitine (IX), talatisamine (X), and atisine HCI (XI) have been isolated from this unique species. The structure of I is determined on the basis of spectral evidences and comparison of the 13CNMR spectrum with that of denudatine. II has not been previously reported as a natural product and III-VII were isolated from this plant for the first time.
Sujet(s)
Anti-inflammatoires non stéroïdiens/isolement et purification , Composés bicycliques pontés/isolement et purification , Diterpènes/isolement et purification , Médicaments issus de plantes chinoises/composition chimique , Anti-inflammatoires non stéroïdiens/composition chimique , Composés bicycliques pontés/composition chimique , Diterpènes/composition chimique , Structure moléculaireRÉSUMÉ
A novel bisditerpenoid alkaloid named pukeensine was isolated from Aconitum pukeense W. T. Wang (Ranunculaceae). Its proposed structure was suggested by spectral evidence. This bisditerpenoid alkaloid skeleton has not been found previously.
Sujet(s)
Alcaloïdes/isolement et purification , Diterpènes/isolement et purification , Médicaments issus de plantes chinoises/composition chimique , Alcaloïdes/composition chimique , Diterpènes/composition chimique , Structure moléculaireRÉSUMÉ
A new diterpenoid alkaloid, vilmorrianone ( 1), has been isolated from ACONITUM VILMORRIANUM Kom. The structure was elucidated by spectral methods and confirmed by X-ray diffraction analysis. Also four known diterpenoid alkaloids have been isolated and identified.
RÉSUMÉ
From the Chinese folk medicine "Zhu jie xian fu" (roots of Anemone raddeana REGEL, Ranunculaceae), two new oleanane-type glycosides, named raddeanosides R8 (1) and R9 (2), were isolated. The structures of 1 and 2 were determined as 3-O-alpha-L-rhamnopyranosyl-(1----2)-O-beta-D-glucopyranosyl- (1----2)-alpha-L-arabinopyranosyl oleanolic acid 28-O-alpha-L-rhamnopyranosyl-(1----4)-O-beta-D-glucopyranosyl-(1----6)-b eta-D- glucopyranoside and 3-O-alpha-L-rhamnopyranosyl-(1----2)-O-beta-D-glucopyranosyl-(1----2)-al pha-L- arabinopyranosyl 27-hydroxyoleanolic acid 28-O-alpha-L-rhamnopyranosyl-(1----4)-O-beta-D-glucopyranosyl-(1----6)-b eta-D- glucopyranoside, respectively.