Showing papers by "Bilge Sener published in 1992"
TL;DR: The EtOH extract of the rhizomes of Veratrum album has afforded two near alkaloids, (+)-jervinone and (+)-verabenzoamine, which were determined by spectral analysis.
Abstract: The EtOH extract of the rhizomes of Veratrum album has afforded two near alkaloids, (+)-jervinone [1] and (+)-verabenzoamine [2]. The structures 1 and 2 were determined by spectral analysis ( 1 H and 13 C nmr, DEPT, 2D COSY, and NOESY)
20 citations
TL;DR: The roots of Buxus papillosa have yielded three new steroidal alkaloids, (+)-papillotrienine, (+-N b -demethylpapillsotrienin, and (+)-demethylharappamine, determined on the basis of spectroscopy.
Abstract: The roots of Buxus papillosa have yielded three new steroidal alkaloids, (+)-papillotrienine [1], (+)-N b -demethylpapillotrienine [2], and (+)-demethylharappamine [3]. The structures have been determined on the basis of spectroscopy
18 citations
TL;DR: The structure 1 has been assigned on the basis of spectral studies including 2D nmr, which shows the presence of sarracine and 9-angelylplatynecine together with a new secopyrrolizidine base.
Abstract: Studies of the alkaloidal constituents of Seneio raremosus have resulted in the isolation of sarracine and 9-angelylplatynecine, along with a new secopyrrolizidine base, senecioracenine [1]. The structure 1 has been assigned on the basis of spectral studies including 2D nmr
7 citations
01 Jan 1992
TL;DR: The root of Paeonia daurica was investigated for its antiinflammatory activity with the carrageenan-induced hind paw edema method in mice, leading to paeonoside and pae onol as the active principles.
Abstract: The root of Paeonia daurica was investigated for its antiinflammatory activity with the carrageenan-induced hind paw edema method in mice. For the determination of active antiinflammaroty principle, the EtOH extract of the root was subjected to a series of successive fractionations, leading to paeonoside and paeonol as the active principles.
6 citations
Journal Article•
TL;DR: Chromatographic separation of the alkaloid extract of the plant material resulted in the isolation of 25 isoquinoline alkaloids, among which oxosarcocapnidine and oxocularin have been isolated for the first time from this plant.
Abstract: The tubers of Corydalis rutifolia subsp. erdelii were analyzed for their alkaloidal content. Chromatographic separation of the alkaloid extract of the plant material resulted in the isolation of 25 isoquinoline alkaloids. Among these, oxosarcocapnidine and oxocularin have been isolated for the first time from this plant.
4 citations
TL;DR: In this article, the alkaloidal content of Corydalis solida (L.) subsp. solida was determined using differential pulse polarization (DPP) in the Britton-Robinson buffer pH 10.
Abstract: The Corydalis alkaloids have been investigated by differential pulse polarography as part of our continuing study of alkaloids. In this study, the alkaloidal content of Corydalis solida (L.) subsp. solida was determined. The results were compared by their structure and reduction mechanism. Quantitative analysis illustrates that Corydalis alkaloids can be determined down to sub-ppm level using differential pulse polarography in Britton-Robinson buffer pH 10. The amount of the various alkaloids in Corydalis solida (L.) subsp. solida have been shown. It was concluded that the reduction process at the dropping mercury electrode was catalytic in nature.
2 citations
01 Jan 1992
TL;DR: In this article, the tubers of Corydalis nutifolia subsp. erdelii were analyzed for their alkaloidal content and 25 isoquinoline alkaloids were identified.
Abstract: The tubers of Corydalis nutifolia subsp. erdelii were analyzed for their alkaloidal content. Chromatographic separation of the alkaloid extract of the plant material resulted in the isolation of 25 isoquinoline alkaloids. Among these, oxoarcocapindine and oxocularine have been isolated for the tint time from this plant.
1 citations