4 documents found, page 1 of 1
Triterpenes from maytenus macrocarpa and evaluation of their anti-hiv activity
Piacente, Sonia; Dos Santos, Lourdes Campaner [UNESP]; Mahmood, Naheed; Pizza, CosimoMade available in DSpace on 2022-04-28T18:55:44Z (GMT). No. of bitstreams: 0 Previous issue date: 2006-01-01; A set of pentacyclic triterpenes has been isolated from the bark of Maytenus macrocarpa (Celastraceae). It includes two new olean-12-ene derivatives, namely 3β, 22α-dihydroxy-olean-12-en-30-oic acid (1) and 22α-hydroxy-olean-12-en-3-oxo-30-oic acid (2), and the new urs-12-ene derivative 3-(E)-coumaroylu...
Esteroide e triterpenos de espécies de qualea-bioatividade sobre mycobacterium ...
Nasser, Ana Lucia Martiniano [UNESP]; Pavan, Fernando Rogério [UNESP]; Boralle, Nivaldo [UNESP]; Zocolo, Guilherme Julião [UNESP]Made available in DSpace on 2022-04-29T09:35:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-01-01; The chloroform extract of bark of the tropical tree Qualea parviflora (Vochysiaceae) was fractionated by column chromatography on silica gel, yielding triterpenes (lupeol, lupenone, betulin, epi-betulinic acid and friedelin) and a steroid (β-sitosterol). β-sitosterol, lupenone and lupeol were also ident...
High-performance liquid chromatographic quantification of flavonoids in Eriocau...
Da Silva, Marcelo Aparecido [UNESP]; Cardoso, Claudia Andréa Lima; Vilegas, Wagner [UNESP]; Dos Santos, Lourdes Campaner [UNESP]Made available in DSpace on 2022-04-28T20:59:05Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-11-01; Quantification of prepared samples by analysis using high performance liquid chromatography with DAD detection was developed to analyze rutin, 6-methoxyapigenin, and 6-methoxyapigenin-7-O-β-D-glucopyranoside isolated from methanolic extracts of different genus: Syngonanthus, Leiothix and Eriocaulon (Eri...
Characterization of flavonoid and naphthopyranone derivatives from Eriocaulon l...
Dos Santos, Lourdes Campaner [UNESP]; Da Silva, Marcelo Aparecido [UNESP]; Rodrigues, Clenilson Martins [UNESP]; Carbone, Virginia; Napolitano, AssuntaMade available in DSpace on 2022-04-28T21:00:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-12-01; Liquid chromatography-electrospray ionization multistage ion trap mass spectrometry (LC-ESI-IT-MSn) was used to analyze the secondary metabolites in the methanol extract of the capitulae of Eriocaulon ligulatum. The major components were monoand diglycosides of flavonoids and naphthopyranones. Eleven co...