Cyclopeptide alkaloids from stems of Paliurus ramossisimus

Three 13-membered cyclopeptide alkaloids, paliurines G, H and I, together with six known alkaloids, nummularine H, daechuine-S3, paliurines A–C and F, were isolated from the stem of Paliurus ramossisimus by a combination of centrifugal partition chromatography and preparative TLC. Their structures w...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 2001-12, Vol.58 (8), p.1271-1276
Main Authors: Lee, Shoei-Sheng, Su, Whei-Chuan, Liu, Karin C.S.Chen
Format: Article
Language:English
Subjects:
Alkaloids - chemistry
Alkaloids - isolation & purification
Biological and medical sciences
Chemical constitution
Cyclopeptide alkaloid
Fundamental and applied biological sciences. Psychology
Paliurines G–I
Paliurus ramossisimus
Peptides, Cyclic - chemistry
Peptides, Cyclic - isolation & purification
Plant physiology and development
Plant Stems - chemistry
Rhamnaceae
Rhamnaceae - chemistry
Sedative effect
Stem
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Summary:Three 13-membered cyclopeptide alkaloids, paliurines G, H and I, together with six known alkaloids, nummularine H, daechuine-S3, paliurines A–C and F, were isolated from the stem of Paliurus ramossisimus by a combination of centrifugal partition chromatography and preparative TLC. Their structures were characterized and established on the basis of spectral analysis. A preliminary study indicated that nummularine H could shorten the methohexital induced sleeping time. Three cyclopeptide alkaloids, i.e. paliurines G, H and I, were isolated from the stem of Paliurus ramossisimus, together with six known alkaloids.
ISSN:0031-9422
1873-3700
DOI:10.1016/S0031-9422(01)00234-5