Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Macki Kaloga"'
Publikováno v:
Phytochemistry. 62:1257-1263
Separation of the methanolic seed extract of Ipomoea obscura afforded five indole alkaloids, three of them (ipobscurines B-D) being new natural products of a unique structural type characterized as serotonin hydroxycinnamic acid amide-type conjugates
Publikováno v:
Phytochemistry. 51:1177-1180
N -Formylloline was isolated from roots of Argyreia mollis . This is the first identification of a 1-aminopyrrolizidine alkaloid (loline alkaloid) in a species of the Convolvulaceae. Lolines are only known from the genus Adenocarpus (Fabaceae) and ce
Publikováno v:
Phytochemistry. 50:267-271
A novel flavonoid, quercetin 7-methyl ether-3,3′-disulfate ( 5 ), was obtained from the roots of Argyreia mollis , together with the known compounds quercetin 7-methyl ether-3-sulfate ( 4 ) and kaempferol 7-methyl ether-3-sulfate ( 2 ). Two further
Autor:
Thomas Hartmann, Karsten Siems, Macki Kaloga, Mahabir P. Gupta, Thomas Schimming, Eckart Eich, Ludger Witte, Kristina Jenett-Siems
Publikováno v:
Phytochemistry. 47:1551-1560
The common necine base of the novel pyrrolizidine alkaloids (ipangulines) isolated recently from Ipomoea hederifolia is not turneforcidine but its 1β-epimer, platynecine. Three novel ipangulines were isolated from the aerial parts of I. hederifolia
Publikováno v:
Planta Medica. 63:343-346
Four major cardenolide glycosides of Xysmalobium undulatum (L.) R. Br. roots (Uzara) have been isolated for the first time in pure form. The structures were elucidated by spectral analyses and determined as sophorosides and their 17-epimers, respecti
Autor:
M. R. Fesen, Macki Kaloga, A. Mazumder, Heinz H. Pertz, Yves Pommier, Eckart Eich, Jutta Schulz
Publikováno v:
Journal of Medicinal Chemistry. 39:86-95
The natural dibenzylbutyrolactone type lignanolide (-)-arctigenin (2), an inhibitor of human immunodeficiency virus type-1 (HIV-1) replication in infected human cell systems, was found to suppress the integration of proviral DNA into the cellular DNA
Publikováno v:
Phytochemistry. 37:1637-1640
Two new lignanamides were isolated from fruits of Jacquemontia paniculata var. paniculata . It could be shown that these compounds represent a p
Publikováno v:
Phytochemistry. 34:437-440
Four novel pyrrolizidine alkaloids were isolated from Ipomoea hederifolia. It could be shown by spectroscopic methods that the compounds represent two pairs of isomeric turneforcidine diesters with either erythro- or threo-2,3-dihydroxy-2-methyl-buty
Autor:
Macki Kaloga, M. R. Fesen, A. Mazumder, Yves Pommier, Heinz H. Pertz, Jutta Schulz, Eckart Eich
Publikováno v:
ChemInform. 27
The natural dibenzylbutyrolactone type lignanolide (−)-arctigenin (2), an inhibitor of human immunodeficiency virus type-1 (HIV-1) replication in infected human cell systems, was found to suppress the integration of proviral DNA into the cellular D
Autor:
Kristina Jenett-Siems, Eckart Eich, Petra Mann, Karsten Siems, Ludger Witte, Macki Kaloga, Jasmin Jakupovic
Publikováno v:
ChemInform. 30