Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Alexandre B. Schefer"'
Autor:
Li-Hong Tseng, Markus Godejohann, F. Peter Guengerich, Alexandre B. Schefer, Markus Voehler, Joel A. Krauser
Publikováno v:
European Journal of Biochemistry. 271:3962-3969
Human cytochrome P450 3A4 forms a series of minor testosterone hydroxylation products in addition to 6 beta-hydroxytestosterone, the major product. One of these, formed at the next highest rate after the 6 beta- and 2 beta-hydroxy products, was ident
Autor:
Paulo C. Vieira, Antonio G. Ferreira, M. Fátima das G. F. da Silva, Alexandre B. Schefer, Ana Luiza G. Degani, Quezia B. Cass, Maique W. Biavatti, João B. Fernandes
Publikováno v:
Phytochemical Analysis. 12:64-68
Investigation of the leaves of Raulinoa echinata Cowan (Rutaceae) has led to the isolation of several furofuran (2,6-diaryl-3,7-dioxabicyclo[3.3.0]-octane) lignan derivatives, namely (+)-sesamin, (+)-eudesmin, (+)-methylpiperitol (= kobusin), (+)-pip
Autor:
Guilherme Muricy, Antonio G. Ferreira, Eduardo Hajdu, Alviclér Magalhães, Yohandra Reyes Torres, Alexandre B. Schefer, Roberto G. S. Berlinck
Publikováno v:
Journal of Natural Products. 63:1098-1105
Arenosclerins A (2), B (3), and C (4), as well as haliclonacyclamine E (1), are new tetracyclic alkylpiperidine alkaloids isolated from a new species of marine sponge belonging to the order Haplosclerida, Arenosclera brasiliensis, a species endemic t
Autor:
Maria Fátima das Graças Fernandes da Silva, Alexandre B. Schefer, Antonio G. Ferreira, Manfred Spraul, Ulrich Braumann, Li-Hong Tseng, Marisi G. Soares, João B. Fernandes, Paulo C. Vieira
Publikováno v:
Journal of chromatography. A. 1128(1-2)
Separation and characterization of limonoids from Switenia macrophylla (Meliaceae) by HPLC–NMR technique has been described. Analyses were carried out using reversed-phase gradient HPLC elution coupled to NMR (600 MHz) spectrometer in stopped-flow
Autor:
Joel A, Krauser, Markus, Voehler, Li-Hong, Tseng, Alexandre B, Schefer, Markus, Godejohann, F Peter, Guengerich
Publikováno v:
European journal of biochemistry. 271(19)
Human cytochrome P450 3A4 forms a series of minor testosterone hydroxylation products in addition to 6 beta-hydroxytestosterone, the major product. One of these, formed at the next highest rate after the 6 beta- and 2 beta-hydroxy products, was ident
Autor:
Alviclér Magalhães, José Carlos de Freitas, Ana Claudia Granato, Antonio G. Ferreira, Alvaro Esteves Migotto, Eduardo Hajdu, Alexandre B. Schefer, Roberto G. S. Berlinck, Bianca de Sanctis
Publikováno v:
Química Nova v.23 n.5 2000
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Vol 23, Iss 5, Pp 594-599 (2000)
Química Nova, Volume: 23, Issue: 5, Pages: 594-599, Published: OCT 2000
Química Nova
Sociedade Brasileira de Química (SBQ)
instacron:SBQ
Química Nova, Vol 23, Iss 5, Pp 594-599 (2000)
Química Nova, Volume: 23, Issue: 5, Pages: 594-599, Published: OCT 2000
Herein we describe the isolation of homarine and piridiniumbetaine B from the sponge Aaptos sp. Although homarine has a common occurrence among animals, piridiniumbetaine B was only recently isolated from the marine sponge Agelas dispar. The isolatio
Autor:
Alviclér Magalhães, Alexandre B. Schefer, Mirna Januária Leal Godinho, A. G. Ferreira, Isara Lourdes Cruz Hernández, R. G. S. Berlinck
Publikováno v:
Journal of natural products. 63(5)
We report the isolation and structure elucidation of N-acetyl-gamma-hydroxyvaline lactone (1) from a streptomycete obtained from marine sediments collected in the north coastline of Sao Paulo State, Brazil.
Autor:
Alviclér Magalhães, Ulisses Pinheiro, Antonio G. Ferreira, Ana Claudia Granato, Eduardo Hajdu, Roberto G. S. Berlinck, Beatriz Mari Saeki, Alexandre B. Schefer
Publikováno v:
Journal of Natural Products. 66:1039-1039
Two new bromotyrosine-derived alkaloids, caissarine A (1) and caissarine B (2), along with three known biogenetically related alkaloids, aeroplysinin-1, fistularin-3, and the artifact of isolation 2-(3,5-dibromo-4-dimethoxy-1-hydroxy-2,5-cyclohexadie