Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Dorila PILÓ-VELOSO"'
Autor:
Vanderlúcia Fonseca de PAULA, Luiz Cláudio de Almeida BARBOSA, Dorila PILÓ-VELOSO, Antonio Jacinto DEMUNER, Oliver HOWARTH
Publikováno v:
Eclética Química, Vol 23, Iss 1 (2018)
O estudo químico das cascas de Ochroma lagopus Swartz levou ao isolamento e ou, identificação de uma mistura de ácidos graxos e triacilglicerídeos, de b-sitosterol (1), estigmasterol (2), daucosterol (3), estigmasterol-3-O-b-D-glicosídeo (4) e
Externí odkaz:
https://doaj.org/article/c852e1f6e5034c59bbdb48db5aa6e460
Autor:
Valdenir José BELINELO, Dorila PILÓ-VELOSO, Eduardo Euclydes de Lima e BORGEs, Dalton Luiz Ferreira ALVES, Genuína Teixeira REIS
Publikováno v:
Eclética Química, Vol 26, Iss 1 (2018)
O ácido 6a,7b–di-hidroxivouacapan-17b–óico foi isolado das sementes de Pterodon polygalaeflorus Benth (Leguminosae) e então dez novas amidas derivadas deste ácido foram preparadas. Os efeitos destas amidas na germinação de sementes de Sorgh
Externí odkaz:
https://doaj.org/article/624d60453eb04103ab3147f00ee5b9a6
Autor:
Karla A. G. Gusmão, Daniel M. dos Santos, Virgílio M. Santos, María Esperanza Cortés, Pablo V. M. Reis, Vera L. Santos, Dorila Piló-Veloso, Rodrigo M. Verly, Maria Elena de Lima, Jarbas M. Resende
Publikováno v:
Journal of Venomous Animals and Toxins including Tropical Diseases, Vol 23, Iss 0 (2017)
Abstract Background The availability of antimicrobial peptides from several different natural sources has opened an avenue for the discovery of new biologically active molecules. To the best of our knowledge, only two peptides isolated from the frog
Externí odkaz:
https://doaj.org/article/b4640ab0362a4237aa2fd403a9e1ef7e
Autor:
Pedro A. Castelo-Branco, Mayura M. M. Rubinger, Leandro de C. Alves, Natalia A. Liberto, Thayane C. M. Nepel, Mariana Catrinck, Silvana Guilardi, Hudson A. Silvério, Wilson P. F. Neto, Laércio Zambolim, Dorila Piló-Veloso
Publikováno v:
Química Nova, Vol 35, Iss 5, Pp 948-955 (2012)
Here we describe the total syntheses and characterization by elemental analyses, infrared and NMR spectroscopy of three new compounds analogous to avenaciolide, a bis-γ-lactone isolated from Aspergillus avenaceus that possesses antifungal activity,
Externí odkaz:
https://doaj.org/article/1248282c443b4a0d8e63fb402dd62f2c
Autor:
Rozângela Magalhães Manfrini, Flávia Rodrigues Teixeira, Dorila Piló-Veloso, Antônio Flávio de Carvalho Alcântara, David Lee Nelson, Ezequias Pessoa de Siqueira
Publikováno v:
Química Nova, Vol 35, Iss 7, Pp 1294-1298 (2012)
The stability of N-propylbutanimine (1) was investigated under different experimental conditions. The acid-catalyzed self-condensation that produced the E-enimine (4) and Z-inimine (5) was studied by experimental analyses and theoretical calculations
Externí odkaz:
https://doaj.org/article/e06ff68919274153a572e0d2a6750b6d
Autor:
Viviane Gomes da Costa Abreu, Marilda Conceição da Silva, Rozângela Manfrini Magalhães, Dorila Piló-Veloso, Izelene Felício da Silva Xavier, Patrícia Machado Oliveira, Antônio Flávio de Carvalho Alcântra
Publikováno v:
Acta Amazonica, Vol 40, Iss 4, Pp 711-718 (2010)
Three coumarins, 5-methoxypsoralene, xanthyletin, and (-)-marmesin, have been isolated from the ethanolic extract of the stem of the Amazonian plant Brosimum potabile. The structures were determined on the basis of NMR analyses and by comparison with
Externí odkaz:
https://doaj.org/article/13c262955fc7474bbb111d64f55a5e17
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:
Antônio Flávio de Carvalho Alcântara, Patrícia Machado de Oliveira, Dorila Piló-Veloso, Alison Geraldo Pacheco
Publikováno v:
Molecules, Vol 14, Iss 3, Pp 1245-1262 (2009)
The genus Aristolochia,an important source of physiologically active compounds that belong to different chemical classes, is the subject of research in numerous pharmacological and chemical studies. This genus contains a large number of terpenoid com
Externí odkaz:
https://doaj.org/article/3d05b76b3e314abfaacd0d4bdafb4950
Autor:
VALDENIR JOSÉ BELINELO, SIDNEY AUGUSTO VIEIRA FILHO, MARCELO SUZART DE ALMEIDA, DALTON LUIZ FERREIRA-ALVES, DORILA PILÓ-VELOSO
Publikováno v:
Revista Caatinga, Vol 22, Iss 4, Pp 108-115 (2009)
The objectives of this research were synthesize and characterize the allelopatic activity of 6a,7bdi-hydroxyvouacapan-17b-oic acid derivatives, isolated from seeds of Pterodon polygalaeflorus Benth (Leguminosae). The compound characterization process
Externí odkaz:
https://doaj.org/article/f44482bdb350401792ad8f3a2f867492
Publikováno v:
Química Nova, Vol 31, Iss 4, Pp 822-827 (2008)
Various studies demonstrate that different frog species produce distinct classes of biologically active peptides. These peptides can act as alternative agents against pathogenic bacteria and fungi by membrane permeability. Although studies have recen
Externí odkaz:
https://doaj.org/article/2a2c9239718746cb8bebb83de1c0da3b