Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Otilia Deusdenia L. Pessoa"'
Autor:
Francisco das Chagas L. Pinto, Maria da Conceição M. Torres, Edilberto R. Silveira, Otília Deusdênia L. Pessoa, Raimundo Braz-Filho, Maria Lenise da Silva Guedes
Publikováno v:
Química Nova, Vol 36, Iss 8, Pp 1111-1115 (2013)
The chemical investigation of the stem EtOH extract of S. buddleifolium resulted in the isolation of terpenoids, amides, lignans and a steroidal alkaloid. Based on HRMS, IR and ¹H and 13C NMR data analysis, the structures of the isolated compounds w
Externí odkaz:
https://doaj.org/article/3c11fe0d34264650aa4f8c4a08a01146
Publikováno v:
Química Nova, Vol 34, Iss 2, Pp 268-271 (2011)
A new flavone named 3,4',5,6-tetramethoxy-[2'',3'':7,8]furanoflavone besides the known flavonoids (2S,3R,4S)-3,4,5,8-tetramethoxy-[2'',3'':6,7]-furanoflavan, 3,6-dimethoxy-2'',2''-dimethylcromene-[2'',3'':7,8] -flavone, 3,5,6-trimethoxy-[2'',3'':7,8]
Externí odkaz:
https://doaj.org/article/6047cfcdb37042b7b19921ef3abc560d
Autor:
Regina Ferreira Gomes, Hélcio Silva dos Santos, Maria Rose Jane R. Albuquerque, Otília Deusdênia L. Pessoa, Leticia V. Costa Lotufo, Claudia do Ó Pessoa, Manoel Odorico de Moraes, Felipe A. R. Rodrigues
Publikováno v:
Química Nova, Vol 33, Iss 5, Pp 1122-1125 (2010)
The phytochemical investigation of the ethanol extract from the aerial parts of Blainvillea rhomboidea (Asteraceae) resulted in the isolation and characterization of 8β-tigloyloxy-grazielia acid, together with the flavonoids derrone, acacetin, luteo
Externí odkaz:
https://doaj.org/article/35c730a87c314f4889207bec09c55692
Constituintes químicos de Vernonia chalybaea mart. Chemical constituents of Vernonia chalybaea mart.
Autor:
Francisco José da Costa, Paulo N. Bandeira, Maria Rose Jane R. Albuquerque, Otília Deusdênia L. Pessoa, Edilberto R. Silveira, Raimundo Braz-Filho
Publikováno v:
Química Nova, Vol 31, Iss 7, Pp 1691-1695 (2008)
The chemical investigation of the hexane and ethanol extracts from aerial parts of Vernonia chalybaea conducted to the isolation and characterization of a new aliphatic tetrahydroxyl ether, along with a series of known compounds such as 4 α,10 α-ep
Externí odkaz:
https://doaj.org/article/4d9c58832d1a4d638e8b2b836378d262
Autor:
Maria Rose Jane R. Albuquerque, Elnatan B. Souza, Maria Usileide D.S. Lins, Nadja A.P. Nogueira, Telma Leda G. Lemos, Edilberto R. Silveira, Otília Deusdênia L. Pessoa
Publikováno v:
ARKIVOC, Vol 2004, Iss 6, Pp 59-65 (2004)
Externí odkaz:
https://doaj.org/article/7bd0c2759bb64bfbb72936f1117c21af
Autor:
Ana Isabel V. Maia, Maria Conceição M. Torres, Otília Deusdênia L. Pessoa, Jane Eire S. A. de Menezes, Sônia Maria O. Costa, Vanessa Lúcia R. Nogueira, Vânia Maria Maciel Melo, Elnatan B. de Souza, Maria Gilvânia B. Cavalcante, Maria Rose Jane R. Albuquerque
Publikováno v:
Química Nova, Vol 33, Iss 3, Pp 584-586 (2010)
The chemical composition of the essential oils, obtained by hidrodistillation, from leaves of two Vernonia species (V. remotiflora and V. brasiliana), was determined by GC-FID and GC-MS. Both essential oils were predominantly constituted by sesquiter
Externí odkaz:
https://doaj.org/article/a2723a4b72a744e49839a7616dc5d15c
Autor:
Luana San de O. Brito, Alison Batista, Flávia Almeida Santos, Renan Pereira de Lima, Alejandro Pedro Ayala, Kirley M. Canuto, Edilberto R. Silveira, Otilia Deusdenia L. Pessoa
Publikováno v:
Fitoterapia. 165
Five unusual kaurane diterpenes, designated as bezerraditerpenes A-E (1-5), along with six known ones (6-11), were isolated from the hexane extract of the stems of Erythroxylum bezerrae. Their structures were elucidated based on the interpretation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::51d36df78b2be44fe378eabe3896de8b
https://pubmed.ncbi.nlm.nih.gov/36603699
https://pubmed.ncbi.nlm.nih.gov/36603699
Autor:
Joana Ribeiro, Henrique Araújo-Silva, Mário Fernandes, Joilna Alves da Silva, Francisco das Chagas L. Pinto, Otília Deusdenia L. Pessoa, Hélcio Silva Santos, Jane Eire Silva Alencar de Menezes, Andreia C. Gomes
Publikováno v:
Natural Products and Bioprospecting, Vol 14, Iss 1, Pp 1-16 (2024)
Abstract According to The World Alzheimer Report 2023 by Alzheimer’s Disease International (ADI) estimates that 33 to 38.5 million people worldwide suffer from Alzheimer’s Disease (AD). A crucial hallmark associated with this disease is associate
Externí odkaz:
https://doaj.org/article/0288c63eab4d4051ade0da11fe9bb848
Autor:
Alison B, da Silva, Edilberto R, Silveira, Diego V, Wilke, Elhton G, Ferreira, Leticia V, Costa-Lotufo, Maria Conceição M, Torres, Alejandro Pedro, Ayala, Wendell S, Costa, Kirley M, Canuto, Alyne R, de Araújo-Nobre, Ana Jérsia, Araújo, José Delano B Marinho, Filho, Otilia Deusdenia L, Pessoa
Publikováno v:
Journal of natural products. 82(7)
Salinaphthoquinones A-E (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::f8e086c6041a5019824c77cfec8aa7c0
https://pubmed.ncbi.nlm.nih.gov/31313922
https://pubmed.ncbi.nlm.nih.gov/31313922
Autor:
Adalva Lopes Machado, Fabiana Martins Aragão, Paulo N. Bandeira, Hélcio Silva dos Santos, Maria Rose Jane R. Albuquerque, Otília Deusdênia L. Pessoa, Edilberto R. Silveira, Edson Paula Nunes, Raimundo Braz-Filho
Publikováno v:
Química Nova, Vol 36, Iss 4, Pp 540-543 (2013)
The chemical investigation of hexane and ethanol extracts from the aerial parts of Vernonia scorpioides resulted in the isolation and characterization of a new polyacetylene lactone, rel-4-dihydro-4β-hydroxy-5a-octa-2,4,6-triynyl-furan-2-(5H)-one, a
Externí odkaz:
https://doaj.org/article/f5ea38298ce348659f94193518e08bba