Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Zenaide S. Ferreira"'
Publikováno v:
Acta Amazonica, Vol 14, Iss 3-4, Pp 451-454 (1984)
Thz wood of Vouacapoua pallidior (Leguminosae-Caesalpinioideae) Contains (+)-methyl vouacapenate.
Externí odkaz:
https://doaj.org/article/45d71806295544e48e8c9b3325419f76
Publikováno v:
Acta Amazonica, Vol 12, Iss 4, Pp 805-807 (1982)
Abstract The ethanolic extract of trunk wood of Tachigalia paniculata Ducke (Leguminosae-Caesalpinioideae) was found to contain substantial quantities of 2-(3-indolyl)-acetic acid.
Externí odkaz:
https://doaj.org/article/578c399e9b6a4842bd3fc8942be9db76
Autor:
Aura M. P. de Diaz, Pedro P. Dias D., Zenaide S. Ferreira, Otto R. Gottlieb, Roberto A. de Lima, Sérgio de H. Cavalcante
Publikováno v:
Acta Amazonica, Vol 7, Iss 2, Pp 292-293 (1977)
Externí odkaz:
https://doaj.org/article/bf37529515964df39afe98f28643c511
Publikováno v:
Biochemical Systematics and Ecology. 8:51-54
The presence of simple benzyltetrahydroisoquinolines in Aniba species, known for their varied phenylpropanoid chemistry, is reported. Since other genera in the Lauraceae contain, in contrast, quite elaborate alkaloidal types, a regulating mechanism m
Publikováno v:
Phytochemistry. 19:1481-1484
The aerial parts of Calea pinnatifida contain a 4-glycosyloxybenzoic acid, anisic acid, tetradeca-4 E ,6 E ,12 E -trien-8,10-diyn-1-ol and arucanolide. The structural elucidation of this germacranolide included comparison with neurolenin B whose ster
Autor:
Marcelo Sobral da Silva, Zenaide S. Ferreira, Otto R. Gottlieb, José M. Barbosa F, Marcia N. Lopes, Massayoshi Yoshida
Publikováno v:
Phytochemistry. 25:2609-2612
Trunk wood, bark and fruit calyx of Licaria chrysophylla contain eight neolignans which differ from the normal benzofuranoid types by showing 7.1′,8. 0 .2′ (rather than 8.1′,7. 0 .2′) linkages between the propenylphenol and allylphenol derive
Autor:
Maria Auxiliadora Coelho Kaplan, Zenaide S. Ferreira, Otto R. Gottlieb, Vicente de Paulo Emerenciano
Publikováno v:
Phytochemistry. 26:3103-3115
The correlation of oxidation levels and skeletal specializations of sesquiterpene lactones reported to occur in genera of the Asteraceae suggest the distribution of the corresponding tribes along chemical gradients. The evolutionary polarity of these
Autor:
Otto R. Gottlieb, Zenaide S. Ferreira
Publikováno v:
Biochemical Systematics and Ecology. 10:155-160
In the sequence of superorders Rutiflorae-Santaliflorae-Araliiflorae-Asteriflorae an increase in the mean oxidation state for each series of C n -polyacetylenes and an extension in the range of the carbon atoms of these polyacetylenes in the directio
Autor:
Leonora M.A. Comegno, Coelho Kaplan, Vicente de Paulo Emerenciano, Maria Auxiliadora, O. R Gottlieb, Zenaide S. Ferreira, Maria Renata de M. Bonfanti
Publikováno v:
Biochemical Systematics and Ecology. 14:585-589
The two basic micromolecular phenomena which accompany the introduction of a novel lineage in angiosperms, vigorous increase in oxidation state of allelochemics and reduction of the number of major biosynthetic routes, are shown to characterize the e
Publikováno v:
Phytochemistry. 21:2756-2758
The trunk wood of Licaria chrysophylla contains rel-(7 S , 8 R , 1′ S , 5′ S )-Δ 8′ -3,3′,5′-trimethoxy-4,5-methylenedioxy-1′,4′,5′,6′- tetrahydro-4′-oxo-7.1′,8.0.2′-neolignan (chrysophyllin A), which differs from all other k