Results 121 to 130 of about 356 (144)

Triterpenes and anthraquinones from Picramnia sellowii Planchon in Hook (Simaroubaceae)

Biochemical Systematics and Ecology, 2001
Triterpenes and anthraquinones from Picramnia sellowii Planchon in Hook (Simaroubaceae) Luisa Balderrama, Alessandra Braca*, Emilia Garcia, Marcela Melgarejo, Cosimo Pizza, Nunziatina De Tommasi a Instituto de Investigaciones Quimicas, Universidad Mayor de San Andres, Calle 27, esq. A.
BALDERRAMA L, BRACA A, GARCIA E, MELGAREJO M, PIZZA, Cosimo, DE TOMMASI, Nunziatina   +5 more
openaire   +3 more sources

Bioactive anthraquinone glycosides from Picramnia antidesma ssp. Fessonia

Phytochemistry, 1995
A bioactivity guided fractionation, using KB cells and brine shrimp assays, of the methanolic extract from the leaves of Picramnia antidesma yielded two known anthraquinones, aloe-emodin and aloe-emodin anthrone, and three new aloe-emodin C-glycosides, named picramnioside A, picramnioside B and picramnioside C.
P N, Solis, A G, Ravelo, A G, Gonzalez, M P, Gupta, J D, Phillipson   +4 more
openaire   +2 more sources

ChemInform Abstract: Mayoside, an Oxanthrone from Picramnia hirsuta.

ChemInform, 1996
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
M. DEL R. HERNANDEZ‐MEDEL, O. LOPEZ‐MARQUEZ, R. SANTILLAN, A. TRIGOS   +3 more
openaire   +1 more source

A new species of picramnia (Picramniaceae) from the Atlantic coastal forest of southern Bahia, Brazil

Brittonia, 1997
A new species ofPicramnia (Picramniaceae) is described, illustrated, and compared to related Amazonian species. The new species,Picramnia coccinea, is known only from three localities in three adjacent municipalities near Ilheus, Bahia, and constitutes another example of endemism in the southern Bahian flora.
William Wayt Thomas
exaly   +2 more sources

3-epi-betulinic acid, a new triterpenoid from Picramnia pentandra

Phytochemistry, 1972
Abstract Extraction of the bark of Picramnia pentandra Sw. gave as the main component a new triterpenoid, whose structure was established as 3-epi-betulinic acid.
W. Herz, P.S. Santhanam, Inger Wahlberg
openaire   +1 more source

Especie nueva de Picramnia (Picramniaceae) del estado de Guerrero, México

Brittonia, 2015
Se describe e ilustra a Picramnia thomasii, como una especie nueva del estado de Guerrero, Mexico. La especie nueva se relaciona con P. guerrerensis, pero difiere por tener foliolos con indumento en enves, inflorescencia estaminada de mayores dimensiones y con mas glomerulos, petalos de forma y color diferente, estambres con mayor longitud, frutos ...
Jaime Jiménez Ramírez, César Adrián González Martínez   +1 more
exaly   +2 more sources

Anthrone and Oxanthrone C-Glycosides from Picramnia latifolia Collected in Peru

Journal of Natural Products, 2004
Cytotoxicity-based, bioassay-guided fractionation of the chloroform-soluble extracts of both the roots and leaves of Picramnia latifolia led to the isolation of two new anthrone C-glycosides, picramniosides G (1) and H (2), two new oxanthrone C-glycosides, mayosides D (3) and E (4), and a new benzanthrone natural product, 6,8-dihydroxy-10-methyl-7H ...
Fredyc, Diaz, Hee-Byung, Chai, Qiuwen, Mi, Bao-Ning, Su, Jose Schunke, Vigo, James G, Graham, Fernando, Cabieses, Norman R, Farnsworth, Geoffrey A, Cordell, John M, Pezzuto, Steven M, Swanson, A Douglas, Kinghorn   +11 more
openaire   +2 more sources

ChemInform Abstract: Anthrone and Oxanthrone C,O‐Diglycosides from Picramnia teapensis.

ChemInform, 2001
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Tatiana Rodriguez‐Gamboa, Sandra R. Victor, Joao B. Fernandes, Edson Rodrigues Fo, M. Fatima das G. F. da Silva, Paulo C. Vieira, Fernando C. Pagnocca, Odair C. Bueno, Maria Jose A. Hebling, Oscar Castro C.   +9 more
openaire   +1 more source

Treatment of real wastewater with TiO2-films sensitized by a natural-dye obtained from Picramnia sellowii

Journal of Environmental Chemical Engineering, 2016
Abstract A natural dye extracted from Picramnia sellowii (Chokanari) was used to prepare sensitized TiO 2 films. Dyes and heterotrophic microorganisms present in wastewater were treated by photocatalysis using visible light. A factorial design 2 3 was employed to select the operational conditions to sensitize TiO 2 films.
J.A. Fernández, A. Suan, J.C. Ramírez, J. Robles, J.C Salcedo, A.M. Pedroza, C.E. Daza   +6 more
openaire   +1 more source

Phylogenomic analysis of Picramnia, Alvaradoa, and Leitneria supports the independent Picramniales

Journal of Systematics and Evolution, 2017
AbstractPicramniales is a recently established monotypic order that has not yet acquired a stable position on the phylogenetic tree of flowering plants. While Picramnia and Alvaradoa were transferred from Simaroubaceae (Sapindales) into Picramniaceae (Picramniales), Leitneria was transferred from the “hamamelids” into Simaroubaceae.
Maria D. Logacheva, Alexey B. Shipunov
openaire   +1 more source