A new tetrahydroprotoberberine N-oxide alkaloid and anti-platelet aggregation constituents of Corydalis tashiroi
Journal
Planta Medica
Journal Volume
67
Journal Issue
5
Pages
423-427
Date Issued
2001
Author(s)
CHE-MING TENG
Abstract
A new tetrahydroprotoberberine N-oxide alkaloid, (-)-cis-isocorypalmine N-oxide (1), together with two known compounds, 6-methoxydihydrosanguinarine (2) and norjuziphine (3), were isolated in continuing studies of the entire Formosan Corydalis tashiroi plant. The structures of these three compounds were determined through spectral analyses. In addition, compounds 1, 2, 3 and the seven alkaloids previously reported: (-)-cis-corydalmine N-oxide, (-)-trans-corydalmine N-oxide, (-)-trans-isocorypalmine N-oxide, scoulerine, protopine, oxysanguinarine and corydalmine, were found to possess antiplatelet aggregation activity.
SDGs
Type
journal article