Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Gerald Wurz"'
Autor:
Otmar Hofer, Gerda Lutz-Kutschera, Franz Hadacek, Harald Greger, Doris Engelmeier, Michael Nagl, Gerald Wurz
Publikováno v:
Journal of Natural Products. 67:19-25
Seven new naturally occurring 3-butylisocoumarins were isolated and identified from lipophilic extracts of aerial as well as underground organs: corfin (17) and 3'-hydroxycorfin (18) from the roots of Chamaemelum mixtum and (-)-(R)-2'-methoxydihydroa
Publikováno v:
Planta Medica. 61:439-445
Isolation of polyacetylenes from aerial and subterranean parts of water hemlock, Cicuta virosa L. (Apiaceae. Apioideae), yielded eleven C 17 -polyacetylenes: cicutoxin (8a), cicutol (3a), (8E,10E)-heptadecadiene-4,6-diyne-1,12-diol (cicudiol, 7), 2,3
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 126:365-368
From the lipophilic leaf extracts ofGlycosmis mauritiana andG. parviflora (Rutaceae-Aurantioideae), the novel thiocarbonic acid derived imide ritigalin was isolated as major component by MPLC and TLC. The structure was elucidated by spectroscopic evi
Publikováno v:
Phytochemistry. 37:1305-1310
Seven new sulphones derived from methylthiopropenoic acid amides have been isolated as dominant components from the methanolic leaf extract of Glycosmis angustifolia collected in Sri Lanka. All derivatives contained substituted phenethylamine moietie
Publikováno v:
Natural Product Letters. 3:177-182
A novel quinolone derived alkaloid of the phenanthridine type, phenaglydon (2), has been isolated from the lipophilic leaf extract of Glycosmis cyanocarpa (Rutaceae) together with schinifoline (1), a prenylated 2-quinolinone characterized by a diene
Publikováno v:
Phytochemistry. 34:175-179
Leaf extracts from different Sri Lankan provenances of Glycosmis mauritiana and G. pentaphylla have been compared by HPLC analyses and tested for antifungal activity. All collections of G. pentaphylla are uniformly characterized by the known alkaloid
Publikováno v:
Phytochemistry. 32:933-936
Four new sulphur containing amides have been isolated from the methanolic leaf extract of the Malayan Glycosmis chlorosperma . Their structures and
Publikováno v:
Tetrahedron. 48:1209-1218
Bioassay guided analysis of the methanolic leaf extract of Glycosmis cyanocarpa (Rutaceae) led to the isolation of a new type of sulfur containing cinnamides with antifungal activity: sinharine (cinnamic acid methylsulfidoethylamide) (2) and the corr
Autor:
Gerald Wurz, Otmar Hofer
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 123:105-120
The solution conformations of 1,4-diaryl-tetrahydro-1H,3H-furo[3,4-c]furans were determined by means of the LIS technique using a modified LIS-simulation program specially designed for the requirements of the aromatic 1,2,3-trimethoxy arrangement as
Publikováno v:
Liebigs Annalen der Chemie. 1993:99-101
The absolute configurations of three 6,7-oxygenated acetylenic spiroacetal enol ethers were determined by using the kinetic method of Horeau. The results were confirmed by the circular dichroism of the compounds in correlation with the corresponding