Search Results - "Guedes, Maria L.S."

A new biphenyl and antimicrobial activity of extracts and compounds from Clusia burlemarxii by Ribeiro, Paulo R., Ferraz, Caline G., Guedes, Maria L.S., Martins, Dirceu, Cruz, Frederico G.

“…Phytochemical investigation on Clusia burlemarxii (Clusiaceae) led to isolation and identification of nine compounds. Were isolated from leaves 3-O-α-L-…”
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A new C-methyl-flavone and other compounds from Myrcia guianensis by Fehlberg, Isley, Ferraz, Caline G., dos Santos, Iago B.F., dos Santos, Ismirna I.P., Guedes, Maria L.S., Ribeiro, Paulo R., Cruz, Frederico G.

“…This study reports the isolation of one new C-methyl-flavone (6,8-dimethyl-4′,5-dihydroxy-3′,7-dimethoxyflavone, 1), along with one C-methyl-flavone…”
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Two new sesquiterpenoids and one new p-coumaroyl-triterpenoid derivative from Myrcia guianensis by Fehlberg, Isley, Ribeiro, Paulo R., dos Santos, Iago B.F., dos Santos, Ismirna I.P., Guedes, Maria L.S., Ferraz, Caline G., Cruz, Frederico G.

“…[Display omitted] •Three new compounds were isolated from Myrcia guianensis.•The isolation of unusual chlorine-containing sesquiterpenoid is reported.•The…”
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FLORISTICS OF FLOWERING PLANTS FROM THE UNDERSTORY OF ATLANTIC REMNANTS IN BAHIA, BRAZIL by Borges, Rodrigo L., Ferreira, Patrícia A., Viana, Blandina F., Guedes, Maria L.S., Roque, Nádia

“…The Atlantic Rainforest has high species diversity and endemism and is one of the most threatened ecosystems in the world. However, the rainforest understory…”
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Floristics of flowering plants from the understory of Atlantic remnants in central and southern Bahia, Brazil by Borges, Rodrigo L., Ferreira, Patrícia A., Viana, Blandina F., Guedes, Maria L.S., Roque, Nádia

“…The Atlantic Rainforest has high species diversity and endemism and is one of the most threatened ecosystems in the world. However, the rainforest understory…”
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Myrciaine, a new nicotinic ester from Myrcia blanchetiana (Myrtaceae) by de Cerqueira, Martins D., de Souza-Neta, Lourdes C., Guedes, Maria L.S., Rivelino, Roberto, Cruz, Frederico G.

“…A nicotinic ester with a new carbon skeleton named myrciaine was obtained from hexane extract of stems of Myrcia blanchetiana using chromatographic methods and…”
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Abietane Diterpenes from Hyptis crassifolia Mart. ex Benth. (Lamiaceae) by Lima, Karísia S. B., Guedes, Maria L. S., Silveira, Edilberto R.

“…The phytochemical study of the ethanol extract from roots of Hyptis crassifolia Mart. ex Benth. (Lamiaceae) led to the isolation and structure elucidation of…”
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Lathrophytoic acids A and B: two novel polyprenylated phloroglucinol derivatives from Kielmeyera lathrophyton by de Almeida, Miquéias F., Guedes, Maria L.S., Cruz, Frederico G.

“…Two novel polyprenylated phloroglucinol derivatives were isolated from the trunk of Kielmeyera lathrophyton (Clusiaceae). Lathrophytoic acid A presented an…”
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Ent-labdane and beyerane diterpenes from Erythroxylum betulaceum Mart by Ribeiro, Erika M. de O., David, Juceni P., David, Jorge M., Guedes, Maria L.S., Lopes, Lucia M.X., Kršková, Zuzana, Dušek, Jaroslav

“…•Diterpenes were isolated from wood of Erythroxylum betulaceum Mart.•Two ent-labdanes and one ent-beyrane diterpenes were isolated.•Diterpenes together…”
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Chemical constituents of Lippia rigida Schauer (Verbenaceae) by de Oliveira, Francisco C., Barbosa, Francisco G., Mafezoli, Jair, de Oliveira, Maria da Conceição F., Neto, Manoel Andrade, Guedes, Maria L.S.

“…•The chemical investigation of Lippia rigida is being reported for the first time.•Nine known flavonoids were isolated from L. rigida.•Compounds 7-methoxy…”
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A C-glucoside benzoic acid derivative from the leaves of Peltophorum dubium by Bahia, Marcus V., David, Jorge M., Rezende, Larissa C., Guedes, Maria L.S., David, Juceni P.

“…The unusual 3αC-glucopyranosil-4,5-dihydroxy-2-methoxy-benzoic acid was isolated from the leaves of Peltophorum dubium and its structure was determined by…”
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Seasonal variation and antimicrobial activity of Myrcia myrtifolia essential oils by Cerqueira, Martins D. de, Souza-Neta, Lourdes C., Passos, Maria das Graças V. M., Lima, Edeltrudes de O., Roque, Nídia F., Martins, Dirceu, Guedes, Maria L. S., Cruz, Frederico G.

“…This work reports the seasonal variation of the composition of leaf volatile oils and the composition of volatile oils from flowers and fruits of Myrcia…”
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Composition and antimicrobial activity of essential oils from Poiretia bahiana C. Müller (Papilionoideae-Leguminosae) by Araújo, Floricéa M., Passos, Maria das Graças V. M., Lima, Edeltrudes de O., Roque, Nídia F., Guedes, Maria L. S., Souza-Neta, Lourdes C. de, Cruz, Frederico Guaré, Martins, Dirceu

“…Poiretia bahiana known as "arrudinha", "arruda da serra" or "arruda brava", has its occurrence restricted to the rock fields (campo rupestre) areas in Chapada…”
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Fatty Acid Esters of Triterpenes from Erythroxylum passerinum by Barreiros, Marizeth L., David, Jorge M., Pereira, Pedro A. de P., Guedes, Maria L. S., David, Juceni P.

“…The hexane extract of leaves of Erythroxylum passerinum yielded besides sitosterol, β-amyrin, lupeol and erythrodiol, β-amyrin palmitate,…”
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Xantonas, triterpenos e atividade antibacteriana do extrato em diclorometano de Kielmeyera cuspidata Saddi, Clusiaceae by Sobral, Ivoneide S., Souza-Neta, Lourdes C., Costa, Giselle. A. N., Guedes, Maria L. S., Martins, Dirceu, Cruz, Frederico G.

“…Do extrato em diclorometano do tronco de Kielmeyera cuspidata Saddi, Clusiaceae, foram isoladas cinco xantonas, 1,6-diidroxi-3,5-dimetoxixantona,…”
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Xanthones and coumarins from Kielmeyera lathrophyton by Cruz, Frederico G., Silva-Neto, José T. da, Guedes, Maria L. S.

“…Three xanthones and six coumarins were isolated from the hexane extract of the stems of Kielmeyera lathrophyton, among them two new prenylated xanthones…”
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Additional Coumarins from Kielmeyera reticulata by Cruz, Frederico G., Moreira, Luciana de M., Santos, Nelson A. S., Guedes, Maria L. S.

“…Three new 4-phenylcoumarins, 5,7-dihydroxy-6-(2'-hydroxy-3'-methyl-3'-butenyl)-8-(4" -cinnamoyl-3"-methyl-1"-oxobutyl)-4-phenylcoumarin,…”
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Coumarins from Kielmeyera reticulata by GuaréCruz, Frederico, Moreira, Luciana M., David, Jorge M., Guedes, Maria L.S., Chávez, Juceni P.

“…Five new prenylated 4-phenycoumarins were isolated from the hexane extract of the stems of Kielmeyera reticulata by chromatographic methods. These compounds…”
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Coumarins from Kielmeyera argentea by Cruz, Frederico Guaré, Santos, Nelson A.S., David, Jorge M., Guedes, Maria L.S., Chávez, Juceni P.

“…Two new prenylated 4- n-propylcoumarins were isolated from the hexane extract of the stems of Kielmeyera argentea by chromatographic methods. These compounds…”
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