Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Francesco Cafieri"'
Autor:
Orazio Taglialatela-Scafati, Ernesto Fattorusso, Francesco Cafieri, Angela Ianaro, Massimo Di Rosa
Publikováno v:
Tetrahedron. 55:13831-13840
Seven lactone metabolites namely the known plakortones B-D (1-3) the novel plakortones E (4) and F (5) and two novel δ-lactones, named simplactones A (6) and B (7) have been isolated from the Caribbean sponge Plakortis simplex, and their structures
Publikováno v:
Tetrahedron. 55:7045-7056
The polyketides dihydroplakortin ( 3 ), and the dodecanoic acid derivatives 4 and 5 , were isolated from the Caribbean marine sponge Plakortis simplex , and their structures fully characterized by spectroscopic and chemical means. The absolute stereo
Publikováno v:
European Journal of Organic Chemistry. 1999:231-238
Two novel norlanostane triglycosides, ectyoplasides A (1) and B (2), have been isolated from the methanolic extracts of the Caribbean sponge Ectyoplasiaferox (Raspaliidae, Axinellida). Their structures have been established by extensive application o
Autor:
Rosa Carnuccio, Orazio Taglialatela-Scafati, Teresa Vallefuoco, Ernesto Fattorusso, Francesco Cafieri
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 7:2283-2288
Four Caribbean Agelas sponges ( A. clathrodes, A. conifera, A. dispar, A. longissima ) have been investigated for the alkaloid composition. Along with a series of known bromopyrrole alkaloids, two related novel compounds of this class, dispacamides C
Publikováno v:
Tetrahedron. 52:13713-13720
Clathramide A ( 1a ) and B ( 1b ) are two novel isomeric bromopyrrole alkaloids containing the uncommon N-methylimidazolinium moiety, isolated from the Caribbean sponge Agelas clathrodes . Their structures, elucidated on the basis of a detailed spect
Publikováno v:
Liebigs Annalen. 1995:1477-1481
A specimen of the marine sponge Agelas longissima was analyzed for glycosphingolipids. Three cerebrosides 1a-3a were isolated, each as a mixture of homologs. The structure of the new glycosphingolipid 1a was elucidated by extensive NMR studies of its
Autor:
Orazio Taglialatela-Scafati, Alfonso Mangoni, Francesco Cafieri, Rosa Carnuccio, Ernesto Fattorusso
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 5:799-804
Agelongine ( 1 ), a novel bromopyrrole alkaloid containing a pyridinium ring in place of the imidazole nucleus, usually found in Agelas alkaloids, has been isolated from the Caribbean sponge Agelas longissima , and its structure established by spectr
Publikováno v:
Magnetic Resonance in Chemistry. 33:286-289
Full assignment of the 1H and 13C NMR spectra of ent-atisane-3β,16α-diol, a cytotoxic diterpene isolated from the Caribbean sponge Spirastrella cunctatrix, was achieved by extensive use of two-dimensional NMR spectroscopy and spectral simulation. T
Autor:
Ernesto Fattorusso, Francesco Cafieri
Publikováno v:
ChemInform. 22
From the marine sponge Ircinia variabilis, three new ceramides, variceramides 1a–3a, have been isolated. Their structures were deduced from spectroscopic studies and by acid hydrolysis.
Publikováno v:
ChemInform. 27
A purine derivative. 3,7-dimethylisoguanine ( 1 ), and a novel alkaloid with the unusual pyrrolopiperazine nucleus, longamide ( 2 ), were isolated from the sponge Agelas longissima , and their structures established on the basis of spectroscopic data