Chemical constituents in root and stem of Piper laetispicum (Ⅱ)
- VernacularTitle:大叶蒟根和茎的化学成分研究(Ⅱ)
- Author:
Jun FANG
;
Jing XIE
;
Yici SHAO
;
Fugang QIAN
- Publication Type:Journal Article
- Keywords:
Piper laetispicum C. DC.;
Piper L.;
amides;
laetispiamide B
- From:
Chinese Traditional and Herbal Drugs
1994;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the chemcial constituents in the root and stem of Piper laetispicum. Methods Compounds were separated and purified by silica gel column. Their structures were identified on the basis of spectral methods. Results Six compounds were isolated and identified from the root and stem of P. laetispicum: N-isobutyl-(3, 4-methylendioxyphenyl)-2E, 7E-nonadienamide (Ⅰ), pipercallosidine (Ⅱ), N-isobutyl-7-(3, 4-methylendioxyphenyl)-2E, 4E-heptadienamide (Ⅲ), 4, 5-dihydropiperlonguminine (Ⅳ), 1-cinnamoylpyrrolidine (Ⅴ), piperitol (Ⅵ). Conclusion Compound Ⅰ is a novel one, named as laetispiamide B and compound Ⅱ is isolated from P. laetispicum for the first time.
