ABSTRACT
Objective: To study the chemical constituents from the twigs and leaves of Fokienia hodginsii. Methods: The compounds were separated and purified by chromatography and their structures were determined by spectroscopic data. Results: Fourteen compounds were isolated from 95% ethanol extract of F. hodginsii and identified as savinin (1), gadain (2), dihydrosesamin (3), hinokinin (4), 7-oxohinokinin (5), puviatilol (6), umbelliferone (7), phytol (8), catechin (9), amentoflavone (10), quercetin-3-O-α-L-rhamnoside (11), salicyl alcohol (12), vanillin (13), and coniferaldehyde (14). Conclusion: Compounds 1-14 are isolated from this plant for the first time.
ABSTRACT
Objective: To study the chemical constituents from the aerial part of Polygonatum cyrtonema. Methods: The compounds were isolated and purified by means of chromatographic techniques and their structures were identified on the basis of spectral features. Results: Fifteen known compounds were isolated in methanol extract from the aerial part of P. cyrtonema and their structures were identified as (3R)-5,7-dihydroxy-3-(2'-hydroxy-4'-methoxybenzyl)-chroman-4-one (1), 5,7-dihydroxy-6-methyl-3-(2',4'-dihydroxybenzyl)- chroman-4-one (2), 5,7-dihydroxy-6-methyl-3-(4'-hydroxybenzyl)-chroman-4-one (3), (3S)-3,7-dihydroxy-8-methoxy-3-(3',4'- methylenedioxybenzyl)-chroman-4-one (4), apigenin (5), kaempferol (6), vanillic acid (7), trans-p-hydroxycinnamic acid (8), trans-p-hydroxycinnamic acid methyl ester (9), saliylic acid (10), (+)-syringaresinol (11), balanophonin B (12), caffeic acid (13), phenylalanine (14), and coniferaldehyde (15). Conclusion: Compounds 1, 2, 7, 11, 14, and 15 are firstly obtained from P. cyrtonema. Compounds 3, 4, and 12 are isolated from the plants of Polygonatum Mill. for the first time.