3 תוצאות
OBJECTIVE
To study the chemical constituents of Psammosilene tunicoides.
METHODS
The two chemical constituents were separated by various chromatographic methods, and their structures were identified on the basis of spectroscopic analysis.
RESULTS
Two beta-carboline alkaloids were separated from
Five new carboline alkaloids, tunicoidines A-E ( 1- 5), and two known carboline alkaloids, 1-acetyl-β-carboline-3-carboxylic acid ( 6) and 1-acetyl-3-carbomethoxyl- β-carboline ( 7), were isolated for the first time from the root of Psammosilene tunicoides. The structures of the new carboline
Tunicyclin L (1), cyclo (L-Pro1-Gly-L-Phe1-L-Ile-L-Pro2-L-Phe2 -L-Thr-L-Val), and 11 known compounds, including one cyclic peptide (2), eight carboline alkaloids (3 -10), one lignan (11) and one flavone (12) were isolated from the roots of Psammosilene