Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Lucienir Pains Duarte"'
Autor:
Leila Renan Oliveira, Mateus Sá Magalhães Serafim, Diego Lanza Dias, Túlio Resende Freitas, Jonatas Santos Abrahao, Guilherme de Medeiros Antar, Bruno E. F. Mota, Adriano de Paula Sabino, Lucienir Pains Duarte, Diogo Montes Vidal, Grasiely Faria de Sousa
Publikováno v:
ACS Omega, Vol 9, Iss 29, Pp 32153-32158 (2024)
Externí odkaz:
https://doaj.org/article/bdfd87509e5f40dd98dfb937f4abcd70
Autor:
Josana Pereira dos Santos, Willian Xerxes Coelho Oliveira, Sidney A. Vieira-Filho, Rafael C. G. Pereira, Grasiely Faria de Souza, Viviane Alves Gouveia, Adriano de Paula Sabino, Fernanda C. G. Evangelista, Jacqueline Aparecida Takahashi, Marília A. F. Moura, Filipe B. Almeida, Lucienir Pains Duarte
Publikováno v:
Química Nova, Vol 43, Iss 5, Pp 558-567 (2020)
Salacia crassifolia traditionally known as “Bacupari-do-Cerrado” is used to treat kidney problems, and as a healing agent for coughs and malaria. The phytochemical study of the S. crassifolia roots led to the isolation of thirteen compounds: abru
Externí odkaz:
https://doaj.org/article/ee8f9d1364a245e3b90adef77959aa53
Autor:
Karen Caroline Camargo, Mariana Guerra de Aguilar, Acácio Raphael Aguiar Moraes, Raquel Goes de Castro, Daiane Szczerbowski, Elizabeth Luciana Marinho Miguel, Leila Renan Oliveira, Grasiely Faria Sousa, Diogo Montes Vidal, Lucienir Pains Duarte
Publikováno v:
Molecules, Vol 27, Iss 3, p 959 (2022)
The Celastraceae family comprises about 96 genera and more than 1.350 species, occurring mainly in tropical and subtropical regions of the world. The species of this family stand out as important plant sources of triterpenes, both in terms of abundan
Externí odkaz:
https://doaj.org/article/c3bddf8924fc4cf68c91502df29564fd
Autor:
Aline Teixeira Maciel e Silva, Cássia Gonçalves Magalhães, Lucienir Pains Duarte, Wagner da Nova Mussel, Ana Lucia Tasca Gois Ruiz, Larissa Shiozawa, João Ernesto de Carvalho, Izabel Cristina Trindade, Sidney Augusto Vieira Filho
Publikováno v:
Brazilian Journal of Pharmaceutical Sciences, Vol 53, Iss 3 (2018)
ABSTRACT The triterpene lupeol (1) and some of its esters are secondary metabolites produced by species of Celastraceae family, which have being associated with cytotoxic activity. We report herein the isolation of 1, the semi-synthesis of eight lupe
Externí odkaz:
https://doaj.org/article/7df9f53b45074aec8d4ad608b77d0bd2
Autor:
Djalma Menezes de Oliveira, Wagner da Nova Mussel, Lucienir Pains Duarte, Grácia Divina de Fátima Silva, Hélio Anderson Duarte, Elionai Cassiana de Lima Gomes, Luciana Guimarães, Sidney A. Vieira Filho
Publikováno v:
Química Nova, Vol 35, Iss 10, Pp 1916-1921 (2012)
Friedelin molecular conformers were obtained by Density Functional Theory (DFT) and by ab initio structure determination from powder X-ray diffraction. Their conformers with the five rings in chair-chair-chair-boat-boat, and with all rings in chair,
Externí odkaz:
https://doaj.org/article/1a4465a5e565432e81458da08ce74590
Autor:
Paulo Roberto Ceridóreo Corrêa, Artur da Silveira Pinto, Grácia Divina de Fátima Silva, Sidney Augusto Vieira Filho, Lucienir Pains Duarte, Sueli Fumie Yamada-Ogatta
Publikováno v:
Acta Scientiarum: Biological Sciences, Vol 33, Iss 4, Pp 437-443 (2011)
The effect of 2-pyridinecarboxylic acid (picolinic acid) on trypanosomes of the subgenus Schizotrypanum isolated from the bat Phyllostomus hastatus was determined in this study. Picolinic acid, at 50 ƒÊg mL-1, inhibited epimastigote growth by 99% a
Externí odkaz:
https://doaj.org/article/d838155a6bad4b2c9a0d7e5c8f677048
Autor:
Lucienir Pains Duarte, Rute Cunha Figueiredo, Grasiely Faria de Sousa, Débora Barbosa da Silva Soares, Salomão Bento Vasconcelos Rodrigues, Fernando César Silva, Grácia Divina de Fátima Silva, Sidney Augusto Vieira Filho
Publikováno v:
Química Nova, Vol 33, Iss 4, Pp 900-903 (2010)
The chemical investigation of Salacia elliptica allowed to the isolation of 20 constituents: two polyols, one xanthone, a mixture of long chain hydrocarbons, one carboxylic acid, one polymer, two steroidal compounds, one aromatic ester and eleven pen
Externí odkaz:
https://doaj.org/article/44e7974f7af24067ab86d81d13cc149f
Autor:
Alison G. Pacheco, Thiago M. Silva, Rozângela M. Manfrini, William S. T. Sallum, Lucienir Pains Duarte, Dorila Piló-Veloso, Antônio F. de C. Alcântara, Vagner F. Knupp
Publikováno v:
Química Nova, Vol 33, Iss 8, Pp 1649-1652 (2010)
From the ethanolic extract of the stem of A. esperanzae ethyl and methyl fatty acid esters, fatty acids, aristolochic I and II acids, and β-cubebin were isolated. In addiction asarinin, populifolic and 2-oxo-populifolic acids, aristolactams AIa and
Externí odkaz:
https://doaj.org/article/26466db173584c168ac13df18f01573b
Autor:
Fabíola Oliveira Lino de Araújo, Arnola Cecília Rietzler, Lucienir Pains Duarte, Grácia Divina de Fátima Silva, Fernando Carazza, Sidney Augusto Vieira Filho
Publikováno v:
Química Nova, Vol 33, Iss 7, Pp 1510-1513 (2010)
The volatile oil from the leaves of E. urograndis was analyzed by GC and GC-MS. It was identified 10 compounds in which, orto-cimene (41.4%) and 1,8-cineol (25.8%) were the main constituents. The induction of deleterious effect to aquatic organisms d
Externí odkaz:
https://doaj.org/article/15498cf739224dd6a70bc458220ef113
Autor:
Vagner Fernandes Knupp, Sidney Augusto Vieira Filho, Grácia Divina de Fátima Silva, Salomão Bento Vasconcelos Rodrigues Rodrigues, Lucienir Pains Duarte, Roqueline Rodrigues Silva de Miranda
Publikováno v:
Molecules, Vol 14, Iss 2, Pp 598-607 (2009)
Friedelin (1), 3b-friedelinol (2), 28-hydroxyfriedelin (3), 16a-hydroxyfriedelin (4), 30-hydroxyfriedelin (5) and 16a,28-dihydroxyfriedelin (6) were isolated through fractionation of the hexane extract obtained from branches of Salacia elliptica. Aft
Externí odkaz:
https://doaj.org/article/01a9bb6374634ad0a4c78ae19f32da8a