RESUMEN
One new eremophilane sesquiterpene periconianone L (1), together with four known guaiane-type sesquiterpenes 4,10,11-trihydroxyguaiane (2), (-)-guai-1(10)-ene-4α,11-diolhydroxymecuration (3), guaidiol A (4), and epi-guaidiol A (5) were isolated from the endophytic fungus Periconia sp. F-31. The structure of the new compound was established by spectroscopic methods, including UV, IR, HRESIMS, and extensive NMR techniques. Compound 3 was isolated as natural product for the first time.
Asunto(s)
Ascomicetos , Sesquiterpenos , Ascomicetos/química , Estructura Molecular , Sesquiterpenos Policíclicos , Sesquiterpenos/químicaRESUMEN
A novel dark pink pigmented bacterium, designated strain CPCC 100847T (deposited with strain code 0113-15), was isolated from the urban air of Beijing, China. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain CPCC 100847T was related to members of the genus Roseomonas and had the highest 16S rRNA gene sequence similarity to Roseomonas aestuarii JC17T (97.5â%). A low level of DNA-DNA relatedness (18.7â%) with its closest type strain R. aestuarii JC17T (KCTC 22692T) proved that strain CPCC 100847T belonged to a unique genomic species. CPCC 100847T had many common characteristics of the genus Roseomonas, but also had a range of cultural, physiological and biochemical characteristics that separated it from related Roseomonas species. Cells were Gram-negative, cocci- to oval-shaped, non-motile, non-endospore-forming and strictly aerobic. The respiratory ubiquinone was Q-10. The polar lipid profile consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, an unidentified aminolipid and an unidentified phospholipid. The major fatty acids (>5â%) were C18â:â1ω7c, anteiso-C15â:â0, C16â:â0, iso-C15â:â0 and summed feature 3 (C16â:â1ω7c and/or C16â:â1ω6c). The combined genotypic and phenotypic data indicated that the isolate represents a novel species of the genus Roseomonas. The name proposed for this species is Roseomonasglobiformis sp. nov., with CPCC 100847T (=KCTC 52094T) as the type strain. The DNA G+C composition is 65.2 mol%.
Asunto(s)
Microbiología del Aire , Methylobacteriaceae/clasificación , Filogenia , Técnicas de Tipificación Bacteriana , Composición de Base , Beijing , ADN Bacteriano/genética , Ácidos Grasos/química , Methylobacteriaceae/genética , Methylobacteriaceae/aislamiento & purificación , Hibridación de Ácido Nucleico , Fosfolípidos/química , Pigmentación , ARN Ribosómico 16S/genética , Análisis de Secuencia de ADNRESUMEN
Thirty-three metabolites including five phenalenone derivatives (1-5), seven cytochalasins (6-12), thirteen butenolides (13-25), and eight phenyl derivatives (26-33) were isolated from Aspergillus sp. CPCC 400735 cultured on rice. The structures of all compounds were elucidated by NMR, MS, and CD experiments, of which 1-5 (asperphenalenones A-E), 6 (aspochalasin R), and 13 (aspulvinone R) were identified as new compounds. Specifically, asperphenalenones A-E (1-5) represent an unusual structure composed of a linear diterpene derivative linked to a phenalenone derivative via a C-C bond. Compounds 1, 4, 10, and 26 exhibited anti-HIV activity with IC50 values of 4.5, 2.4, 9.2, and 6.6 µM, respectively (lamivudine 0.1 µM; efavirenz, 0.4 × 10-3 µM).
Asunto(s)
4-Butirolactona/análogos & derivados , Fármacos Anti-VIH/aislamiento & purificación , Fármacos Anti-VIH/farmacología , Aspergillus/química , Citocalasinas/aislamiento & purificación , Citocalasinas/farmacología , Diterpenos/aislamiento & purificación , Diterpenos/farmacología , Fenalenos/aislamiento & purificación , Fenalenos/farmacología , 4-Butirolactona/química , 4-Butirolactona/aislamiento & purificación , 4-Butirolactona/farmacología , Fármacos Anti-VIH/química , China , Citocalasinas/química , Diterpenos/química , Endófitos/química , Concentración 50 Inhibidora , Kadsura/microbiología , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Fenalenos/químicaRESUMEN
Five monoterpenoids were isolated from the endophytic fungus Periconia sp. F-31, including three new carene-type monoterpenoids, 2-carene-5,8-diol (1), 2-carene-8,10-diol (2), 2-carene-8-acetamide (3), one new menthene-type monoterpenoid 8-hydroxy-1,7-expoxy-2-menthene (4), and one known monoterpenoid anethofuran (5). The structures of all compounds were elucidated based on a comprehensive spectroscopic data analysis, electronic circular dichroism (ECD), and calculated ECD.
Asunto(s)
Antineoplásicos/aislamiento & purificación , Ascomicetos/química , Monoterpenos/aislamiento & purificación , Antineoplásicos/química , Antineoplásicos/farmacología , Monoterpenos Bicíclicos , Dicroismo Circular , Cristalografía por Rayos X , Ensayos de Selección de Medicamentos Antitumorales , Estructura Molecular , Monoterpenos/química , Monoterpenos/farmacología , Resonancia Magnética Nuclear BiomolecularRESUMEN
To investigate the secondary metabolites of endophytic fungi Pericinia sp. F-31. Column chromatography on silica gel, Sephadex LH-20 and semi-preparative HPLC were used to separate and purify the compounds. Two compounds were isolated from the fermentation broth of Periconia sp. Their structures were identified as 5-(1-hydroxyhexyl) -6-methyl-2H-pyran-2-one (1) and 2-(3-hydroxy-4-methylphenyl) -propanoic acid (2). Compound 1 was a new lactone compound, compound 2 was new natural product, and the NMR data of compound 2 was reported for the first time.
Asunto(s)
Annona/microbiología , Ascomicetos/metabolismo , Medicamentos Herbarios Chinos/química , Medicamentos Herbarios Chinos/aislamiento & purificación , Endófitos/metabolismo , Lactonas/química , Lactonas/aislamiento & purificación , Ascomicetos/química , Ascomicetos/genética , Ascomicetos/aislamiento & purificación , Medicamentos Herbarios Chinos/metabolismo , Endófitos/química , Endófitos/genética , Endófitos/aislamiento & purificación , Lactonas/metabolismo , Espectrometría de Masas , Estructura MolecularRESUMEN
Biotransformations of icariin (1) by cell suspension cultures of Glycyrrhiza uralensis and Morus alba yielded two new metabolites, icaruralins A and B (2 and 3), and one known metabolite, baohuoside I (4). Their structures were determined on the basis of extensive spectroscopic analysis. This is the first report that the cell suspension cultures of G. uralensis and M. alba possess deglycosylation functionality.
Asunto(s)
Flavonoides/aislamiento & purificación , Flavonoides/farmacología , Glycyrrhiza uralensis/química , Morus/química , Biotransformación , Flavonoides/química , Estructura Molecular , Resonancia Magnética Nuclear Biomolecular , Raíces de Plantas/químicaRESUMEN
A new 2-arylbenzofuran compound, 5-dehydroxy-moracin U (1), along with 10 known compounds (2-11), were isolated from cell cultures of Morus alba. Their structures were elucidated on the basis of extensive spectroscopic analyses. The anti-inflammatory activity assay of 1-8 showed that 2 and 8 exhibited significant inhibitory effect on LPS-induced NO production with the values of 76.4% and 98.7% at 10(- 5) M, respectively.
Asunto(s)
Benzofuranos/aislamiento & purificación , Morus/química , Antiinflamatorios , Benzofuranos/química , Benzofuranos/farmacología , Lipopolisacáridos/farmacología , Estructura Molecular , Óxido Nítrico/biosíntesis , Corteza de la Planta/química , Extractos Vegetales/químicaRESUMEN
A new spiroketallactone, epi-danshenspiroketallactone A (1) and a new C18-norditerpenoid, normiltioane (2) along with 21 known compounds, were isolated from cell cultures of Salvia miltiorrhiza. Their structures were elucidated on the basis of extensive spectroscopic analyses. In the in vitro assays, the compounds 9-11, 21-23 exhibited the significant antitumor activity with the IC(50) ranges of 1.0-8.3 µM.
Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Técnicas de Cultivo de Célula , Diterpenos/farmacología , Salvia miltiorrhiza/química , Antineoplásicos Fitogénicos/química , Antineoplásicos Fitogénicos/aislamiento & purificación , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Diterpenos/química , Diterpenos/aislamiento & purificación , Relación Dosis-Respuesta a Droga , Ensayos de Selección de Medicamentos Antitumorales , Humanos , Estructura Molecular , Salvia miltiorrhiza/citología , Relación Estructura-ActividadRESUMEN
One new abietane-type norditerpenoid, named militibetin A (1), was isolated from the dry roots of Salvia miltiorrhiza, along with two known diterpenoids, yunnannin A (2) and ferruginol (3). Their structures were established by means of extensive spectroscopic analyses. In vitro, compounds 1-3 were found to show cytotoxicities against selected cancer cells, including P-388, HONE-1, and HT-29, and gave ED(50) values in the range of 2.9-5.4 µg ml(- 1).
Asunto(s)
Abietanos/aislamiento & purificación , Abietanos/farmacología , Antineoplásicos Fitogénicos/aislamiento & purificación , Antineoplásicos Fitogénicos/farmacología , Salvia miltiorrhiza/química , Abietanos/química , Animales , Antineoplásicos Fitogénicos/química , Ensayos de Selección de Medicamentos Antitumorales , Células HT29 , Humanos , Leucemia P388 , Ratones , Estructura Molecular , Raíces de Plantas/químicaRESUMEN
The column chromatography on silica gel, Sephadex LH-20 and semi-preparative HPLC were used to separate and purify the compounds from the EtOAc extract of medium and MeOH extract of cell cultures of Morus alba. Eight compounds were isolated. Based on physico-chemical properties and spectroscopic data, their structures were identified as isobavachalcone (1), genistein (2), norartocarpetin (3), albanin A (4), guangsangon E (5), mulberrofuran F (6), chalcomoracin (7), kuwanon J (8). Compounds 3-6 were isolated from the cell cultures of M. alba for the first time.
Asunto(s)
Técnicas de Cultivo de Célula/métodos , Morus/química , Hojas de la Planta/química , Plantas Medicinales/química , Benzofuranos/aislamiento & purificación , Chalconas/aislamiento & purificación , Cromatografía en Gel/métodos , Cromatografía Líquida de Alta Presión , Dextranos , Genisteína/aislamiento & purificación , Morus/citología , Hojas de la Planta/citología , Plantas Medicinales/citología , Gel de Sílice , Terpenos/aislamiento & purificaciónRESUMEN
A new coumestan (solalyratin A, 1) and a novel cyclic eight-membered α,ß-unsaturated ketone (solalyratin B, 3), together with three known compounds, puerariafuran (2), coumestrol (4) and 9-hydroxy-2',2'-dimethylpyrano[5',6':2,3]-coumestan (5), were isolated from the whole plant of Solanum lyratum. Their structures were elucidated on the basis of spectroscopic analyses. In vitro, compounds 1-5 showed anti-inflammatory activities, with IC(50) values in the range 6.3-9.1 µM.
Asunto(s)
Antiinflamatorios/química , Antiinflamatorios/farmacología , Cumarinas/química , Cumarinas/farmacología , Cetonas/química , Cetonas/farmacología , Animales , Espectroscopía de Resonancia Magnética , Estructura Molecular , Neutrófilos/efectos de los fármacos , Neutrófilos/metabolismo , Extractos Vegetales/química , Extractos Vegetales/farmacología , Ratas , SolanumRESUMEN
Two new terpenoids, (+)-(3S,6S,7R,8S)-periconone A (1) and (-)-(1R,4R,6S,7S)-2-caren-4,8-olide (2), have been isolated from an endophytic fungus Periconia sp., which was collected from the plant Annona muricata. Their structures were elucidated on the basis of extensive spectroscopic analyses. In the in vitro assays, the two compounds showed low cytotoxic activities against six human tumor cell lines (HCT-8, Bel-7402, BGC-823, A549, A2780 and MCF-7) with IC(50)>10(-5) M.
Asunto(s)
Annona/microbiología , Antineoplásicos/química , Antineoplásicos/farmacología , Ascomicetos/química , Terpenos/química , Terpenos/farmacología , Antineoplásicos/aislamiento & purificación , Línea Celular Tumoral , Diterpenos/química , Diterpenos/aislamiento & purificación , Diterpenos/farmacología , Ensayos de Selección de Medicamentos Antitumorales , Humanos , Modelos Moleculares , Neoplasias/tratamiento farmacológico , Análisis Espectral , Terpenos/aislamiento & purificaciónRESUMEN
Two new norditerpenoid alkaloids, named scutebarbatines M-N (1 and 2), were isolated from the whole plant of Scutellaria barbata D. Don. Their structures were established on the basis of detailed spectral analyses. In vitro, two new compounds showed significant cytotoxic activities against three human cancer lines (HONE-1 nasopharyngeal, KB oral epidermoid carcinoma and HT29 colorectal carcinoma cells), and gave IC50 values in the range of 3.5-6.3 µM.
Asunto(s)
Alcaloides/química , Alcaloides/farmacología , Antineoplásicos Fitogénicos/química , Antineoplásicos Fitogénicos/farmacología , Scutellaria/química , Línea Celular Tumoral , Proliferación Celular/efectos de los fármacos , Ensayos de Selección de Medicamentos Antitumorales , Células HT29 , Humanos , Concentración 50 Inhibidora , Espectroscopía de Resonancia Magnética , Estructura MolecularRESUMEN
Three new 4-hydroxyisoflavans, named lyratin A (1), lyratin B (2) and lyratin C (3), along with a known compound, 4,7,2'trihydroxy-4'-methoxyisoflavan (4), were isolated from the whole plant of Solanum lyratum. Their structures were established by means of detailed physical data analyses. In vitro, four compounds showed anti-inflammatory activities with inhibitory ratios of release of beta-glucuronidase from polymorphonuclear leukocytes of rats in the range of 30.3-38.6% at 10 microM.
Asunto(s)
Antiinflamatorios/química , Antiinflamatorios/farmacología , Isoflavonas/química , Isoflavonas/farmacología , Neutrófilos/efectos de los fármacos , Solanum/química , Animales , Antiinflamatorios/aislamiento & purificación , Neutrófilos/inmunología , RatasRESUMEN
Two new neo-clerodane diterpenoids have been isolated from the whole plant of Scutellaria barbata D. Don, and their structures were established by detailed spectral analyses as scutehenanine H (1) and 6-(2,3-epoxy-2-isopropyl-n-propoxyl)barbatin C (2). In vitro, the isolated two new compounds showed significant cytotoxic activities against three human cancer lines, and gave IC(50) values in the range OF 2.0-4.2 µΜ.
Asunto(s)
Antineoplásicos Fitogénicos/aislamiento & purificación , Diterpenos de Tipo Clerodano/aislamiento & purificación , Neoplasias/tratamiento farmacológico , Fitoterapia , Extractos Vegetales/uso terapéutico , Scutellaria/química , Antineoplásicos Fitogénicos/farmacología , Antineoplásicos Fitogénicos/uso terapéutico , Línea Celular Tumoral , Diterpenos de Tipo Clerodano/farmacología , Diterpenos de Tipo Clerodano/uso terapéutico , Humanos , Concentración 50 Inhibidora , Estructura Molecular , Extractos Vegetales/química , Extractos Vegetales/farmacologíaRESUMEN
Six new neo-clerodane diterpenoid alkaloids, named scutehenanines A-D (1, 4, 5, 6), 6-O-acetylscutehenanine A (2), and 6-O-(2-carbonyl-3-methylbutanoyl)scutehenanine A (3), were isolated from the whole plant of Scutellaria barbata. Their structures were established on the basis of detailed physical data analyses. In vitro, the six new isolated compounds showed cytotoxic activities against three human cancer lines (HONE-1 nasopharyngeal, KB oral epidermoid carcinoma, and HT29 colorectal carcinoma cells) and gave IC50 values in the range 2.8-6.4 microM.
Asunto(s)
Antineoplásicos Fitogénicos/aislamiento & purificación , Antineoplásicos Fitogénicos/farmacología , Diterpenos de Tipo Clerodano/aislamiento & purificación , Diterpenos de Tipo Clerodano/farmacología , Medicamentos Herbarios Chinos/aislamiento & purificación , Medicamentos Herbarios Chinos/farmacología , Plantas Medicinales/química , Scutellaria/química , Alcaloides/química , Alcaloides/farmacología , Antineoplásicos Fitogénicos/química , Diterpenos de Tipo Clerodano/química , Ensayos de Selección de Medicamentos Antitumorales , Medicamentos Herbarios Chinos/química , Humanos , Concentración 50 Inhibidora , Estructura MolecularRESUMEN
Two new neo-clerodane diterpenoid alkaloids, scutebarbatine O (1) and 6-O-nicotinoylscutebarbatine G (2), were isolated from the whole plant of Scutellaria barbata. Their structures were elucidated by spectroscopic methods including extensive 1D and 2D NMR analyses. In vitro, compounds 1 and 2 showed cytotoxic activities against three human tumor cell lines, namely, HONE-1 nasopharyngeal, KB oral epidermoid carcinoma, and HT29 colorectal carcinoma cells, and with IC(50) values in the range of 2.1-5.7 microM.
Asunto(s)
Alcaloides/aislamiento & purificación , Alcaloides/farmacología , Antineoplásicos Fitogénicos/aislamiento & purificación , Antineoplásicos Fitogénicos/farmacología , Diterpenos de Tipo Clerodano/aislamiento & purificación , Diterpenos de Tipo Clerodano/farmacología , Medicamentos Herbarios Chinos/aislamiento & purificación , Medicamentos Herbarios Chinos/farmacología , Plantas Medicinales/química , Scutellaria/química , Alcaloides/química , Antineoplásicos Fitogénicos/química , Diterpenos de Tipo Clerodano/química , Ensayos de Selección de Medicamentos Antitumorales , Medicamentos Herbarios Chinos/química , Células HT29 , Humanos , Estructura Molecular , Resonancia Magnética Nuclear BiomolecularRESUMEN
Two new sesquiterpenoids, lyratol C (1) and lyratol D (2), together with two known sesquiterpenoids, dehydrovomifoliol (3) and blumenol A (4), were isolated from the whole plant of Solanum lyratum. Their structures were established by spectroscopic analyses. In vitro, the four compounds showed significant cytotoxic activities against three human cancer cell lines, namely, HONE-1 nasopharyngeal, KB oral epidermoid carcinoma, and HT29 colorectal carcinoma cells, and gave IC(50) values in the range 3.7-8.1 microM.
Asunto(s)
Antineoplásicos/aislamiento & purificación , Sesquiterpenos/aislamiento & purificación , Solanum/química , Antineoplásicos/farmacología , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Humanos , Concentración 50 Inhibidora , Estructura Molecular , Sesquiterpenos/farmacologíaRESUMEN
Two new alkaloids, named suspensine A (1) and (-)-7'-O-methylegenine (2), along with two known alkaloids, (-)-egenine (3) and (-)-bicuculline (4), were isolated from the ethanolic extract of the fruits of Forsythia suspensa. Their structures were established by means of chemical methods and spectroscopic analyses. In vitro, four alkaloids showed anti-inflammatory activities, with inhibition rates of release of beta-glucuronidase from polymorphonuclear leukocytes of rats being in the range 34.8%-39.6% at 10 microM.