Pyromeconic acid and its glucosidic derivatives from leaves of Erigeron annuus, and the siderophile activity of pyromeconic acid.
3'-O-Caffeylerigeroside (pyromeconic acid 3-O-beta-D-glucoside 3'-O-caffeyl ester) was obtained from the leaves of Erigeron annuus as a new pyromeconic acid derivative, and its structure was elucidated. Together with the gamma-pyrone derivative, pyromeconic acid (3-hydroxy-4H-pyran-4-one) and its beta-glucoside (erigeroside) were also isolated from the aerial parts of E. annuus. The siderophile activity of pyromeconic acid was also studied.
Hashidoko
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JRDC Plant Ecochemicals Project, Hokkaido, Japan.
D002109:Caffeic Acids / Q000737:chemistry* / Q000302:isolation & purification; D002855:Chromatography, Thin Layer; D002867:Chromones / Q000737:chemistry* / Q000378:metabolism; D006868:Hydrolysis; D007501:Iron / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry*; D011522:Protons; D011753:Pyrones / Q000737:chemistry* / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry; D012997:Solvents; D013057:Spectrum Analysis; D013329:Structure-Activity Relationship; D001617:beta-Glucosidase / Q000378:metabolism
C094257:3'-O-caffeoylerigeroside; D002109:Caffeic Acids; D002867:Chromones; D011522:Protons; D011753:Pyrones; D012997:Solvents; C030416:erigeroside; C030415:pyromeconic acid; D007501:Iron; D001617:beta-Glucosidase