ABSTRACT
Objective: To investigate the chemical constituents of Abacopteris penangiana. Methods: Compounds were separated and purified by column chromatography with silica gel, RP C18, and Sephadex LH-20. The structures of the obtained compounds were elucidated on the basis of physicochemical properties and spectroscopic methods. Results: Seven compounds were purified and their structures were identified as: (7′Z)-3-O-(3, 4-dihydroxy phenylethenyl)-caffeic acid (1), cafeicin B (2), matteucinol (3), protocatechuin acid (4), p-methoxybenzoic acid (5), β-sitosterol (6), and β-daucosterol (7). Conclusion: Compound 1 is a new compound named abacopteric acid, and compounds 2-7 are isolated from the plant for the first time.
ABSTRACT
Objective To study the chemical constituents of Abacopteris penangiana.Methods The compounds were separated and purified by various chromatographic techniques and their structures were elucidated on the basis of physiochemical properties and spectroscopic methods.Results Seven compounds were purified and their structures were identified as:(7'Z)-3-O-(3,4-dihydroxy phenylethenyl)-caffeic acid(1),caffeiein B(2),matteucinol(3),protocatechuic acid(4),p-methoxybenzoic acid(5),β-sitosterol(6),and daucosterol(7).Conclusion Compound 1 is a new phenolic acid compound named abacopteric acid,and the other compounds are isolated from the plant for the first time.